CVE-2023-22527

CRITICAL KEV RANSOMWARE NUCLEI LAB

Atlassian Confluence SSTI Injection

Title source: metasploit
STIX 2.1

Exploitation Summary

CVE-2023-22527 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added January 24, 2024, with confirmed use in ransomware campaigns. EIP tracks 25 public exploits from researchers including Boogipop, M0untainShley, Avento, including a Metasploit module exploits/multi/http/atlassian_confluence_rce_cve_2023_22527. A Nuclei detection template is also available.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2023-22527, which targets Confluence to inject a Godzilla memory shell. The exploit leverages reflection to manipulate the servlet context and establish a backdoor.

Description

A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated attacker to achieve RCE on an affected instance. Customers using an affected version must take immediate action. Most recent supported versions of Confluence Data Center and Server are not affected by this vulnerability as it was ultimately mitigated during regular version updates. However, Atlassian recommends that customers take care to install the latest version to protect their instances from non-critical vulnerabilities outlined in Atlassian’s January Security Bulletin.

Exploits (25)

nomisec WORKING POC 76 stars
by Boogipop · remote
https://github.com/Boogipop/CVE-2023-22527-Godzilla-MEMSHELL

This repository contains a functional exploit for CVE-2023-22527, which targets Confluence to inject a Godzilla memory shell. The exploit leverages reflection to manipulate the servlet context and establish a backdoor.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence (tested on 8.5.1)
No auth needed
Prerequisites: Access to the target Confluence instance · Java runtime environment
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 41 stars
by M0untainShley · remote
https://github.com/M0untainShley/CVE-2023-22527-MEMSHELL

This repository contains a functional exploit for CVE-2023-22527, targeting Confluence to inject in-memory webshells (Behinder and Godzilla). It leverages template injection via the Velocity engine to achieve remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence 8.5.3
No auth needed
Prerequisites: Access to the Confluence server's template endpoint · Java runtime environment
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 25 stars
by Avento · poc
https://github.com/Avento/CVE-2023-22527_Confluence_RCE

This repository contains a functional exploit for CVE-2023-22527, a remote code execution vulnerability in Atlassian Confluence. The exploit leverages an OGNL injection via a maliciously crafted POST request to the `/template/aui/text-inline.vm` endpoint, bypassing the Struts2 sandbox to execute arbitrary commands.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Data Center and Server (versions affected by CVE-2023-22527)
No auth needed
Prerequisites: Network access to the vulnerable Confluence instance · Vulnerable endpoint `/template/aui/text-inline.vm` must be accessible
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 22 stars
by Manh130902 · remote
https://github.com/Manh130902/CVE-2023-22527-POC

This repository contains a functional exploit for CVE-2023-22527, a template injection vulnerability in Confluence Data Center and Server. The exploit leverages OGNL injection to achieve unauthenticated remote code execution by sending a crafted POST request to the vulnerable endpoint.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Data Center and Server (versions 8.0.x, 8.1.x, 8.2.x, 8.3.x, 8.4.x, 8.5.0-8.5.3)
No auth needed
Prerequisites: Target must be running a vulnerable version of Confluence · Network access to the target
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 19 stars
by VNCERT-CC · remote
https://github.com/VNCERT-CC/CVE-2023-22527-confluence

This repository contains a functional exploit for CVE-2023-22527, a template injection vulnerability in Confluence. The exploit uses OGNL injection to write a malicious script to a file and execute it, achieving remote code execution (RCE).

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence
No auth needed
Prerequisites: Target Confluence instance vulnerable to CVE-2023-22527 · Network access to the target
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 12 stars
by Vozec · remote
https://github.com/Vozec/CVE-2023-22527

This repository contains a functional exploit for CVE-2023-22527, a Server-Side Template Injection (SSTI) vulnerability in Confluence. The exploit leverages a crafted payload to achieve remote code execution (RCE) via the Freemarker template engine.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Data Center and Server (versions 8.0.x to 8.5.3)
No auth needed
Prerequisites: Network access to the vulnerable Confluence instance
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 9 stars
by RevoltSecurities · remote
https://github.com/RevoltSecurities/CVE-2023-22527

The repository contains a functional exploit for CVE-2023-22527, targeting Confluence servers via an OGNL injection vulnerability. The exploit sends a crafted POST request to execute arbitrary commands, with the response headers confirming successful execution.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Server/Data Center
No auth needed
Prerequisites: Network access to the target Confluence server · Vulnerable version of Confluence (pre-patch)
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 9 stars
by Chocapikk · remote
https://github.com/Chocapikk/CVE-2023-22527

This repository contains a functional exploit for CVE-2023-22527, a Server-Side Template Injection (SSTI) vulnerability in Atlassian Confluence leading to Remote Code Execution (RCE). The exploit leverages OGNL injection via a crafted POST request to execute arbitrary commands on the target system.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Server 8.5.3 and earlier
No auth needed
Prerequisites: Network access to the target Confluence instance · Target must be running a vulnerable version of Confluence
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 6 stars
by vulncheck-oss · remote
https://github.com/vulncheck-oss/cve-2023-22527

This repository contains three functional Go-based exploits for CVE-2023-22527, targeting Atlassian Confluence. The exploits demonstrate in-memory execution of payloads (webshell, reverse shell, and Nashorn JavaScript reverse shell) without disk interaction, leveraging OGNL injection for remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence (versions affected by CVE-2023-22527)
No auth needed
Prerequisites: Network access to vulnerable Confluence instance · Java version below 15 for Nashorn exploit
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 5 stars
by BBD-YZZ · remote
https://github.com/BBD-YZZ/Confluence-RCE

This repository contains a functional exploit for CVE-2022-26134, a Confluence RCE vulnerability, with a GUI interface for executing commands and reverse shells. The PoC includes multiple Confluence CVEs and supports proxy configurations.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence
No auth needed
Prerequisites: Network access to vulnerable Confluence instance · Python environment
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 5 stars
by thanhlam-attt · remote
https://github.com/thanhlam-attt/CVE-2023-22527

This repository contains a functional exploit for CVE-2023-22527, a remote code execution vulnerability in Confluence Data Center and Server. The exploit leverages template injection via the `/template/aui/text-inline.vm` endpoint to execute arbitrary commands, including a reverse shell payload.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Confluence Data Center and Server (versions 8.0.x to 8.5.3)
No auth needed
Prerequisites: Network access to the target Confluence instance · Python environment with `requests` library
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 5 stars
by adminlove520 · remote
https://github.com/adminlove520/CVE-2023-22527

This repository contains a functional Python exploit for CVE-2023-22527, a remote code execution (RCE) vulnerability in Atlassian Confluence. The exploit leverages a template injection flaw in the `/template/aui/text-inline.vm` endpoint to execute arbitrary commands via OGNL injection, with results returned in the `X-Cmd-Response` header.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Data Center and Server (8.0.x - 8.5.3)
No auth needed
Prerequisites: Network access to the vulnerable Confluence instance · Vulnerable endpoint `/template/aui/text-inline.vm` must be accessible
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 5 stars
by Privia-Security · remote
https://github.com/Privia-Security/CVE-2023-22527

This repository contains a functional Go-based exploit for CVE-2023-22527, a remote code execution (RCE) vulnerability in Confluence Data Center and Server. The exploit leverages an OGNL injection via a crafted HTTP POST request to execute arbitrary commands on vulnerable systems.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Data Center and Server (versions 8.0.x to 8.5.3)
No auth needed
Prerequisites: Network access to the target Confluence instance · Vulnerable version of Confluence (8.0.x to 8.5.3)
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 4 stars
by yoryio · remote
https://github.com/yoryio/CVE-2023-22527

This repository contains a functional exploit for CVE-2023-22527, a Server-Side Template Injection (SSTI) vulnerability in Atlassian Confluence Server and Data Center. The exploit sends a crafted HTTP request to execute arbitrary commands via OGNL injection in the Velocity template engine.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Server and Data Center (versions 8.0.x, 8.1.x, 8.2.x, 8.3.x, 8.4.x, 8.5.0-8.5.3)
No auth needed
Prerequisites: Network access to the target Confluence server · Vulnerable version of Confluence
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 4 stars
by C1ph3rX13 · remote
https://github.com/C1ph3rX13/CVE-2023-22527

This repository contains a functional Go-based exploit for CVE-2023-22527, an RCE vulnerability in Atlassian Confluence. The exploit leverages OGNL injection via a crafted payload to execute arbitrary commands, bypassing sandbox restrictions via the `isSafeExpression` function.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence (versions affected by CVE-2023-22527)
No auth needed
Prerequisites: Network access to the target Confluence instance · Vulnerable version of Confluence
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 2 stars
by Niuwoo · remote
https://github.com/Niuwoo/CVE-2023-22527

This repository contains a functional exploit for CVE-2023-22527, a remote code execution vulnerability in Atlassian Confluence. The exploit leverages an OGNL injection via a crafted payload sent to the `/template/aui/text-inline.vm` endpoint, allowing arbitrary command execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence
No auth needed
Prerequisites: Network access to the target Confluence instance · Vulnerable version of Atlassian Confluence
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec STUB 2 stars
by Drun1baby · remote
https://github.com/Drun1baby/CVE-2023-22527

The repository contains only a minimal README with no exploit code, technical details, or functional PoC. It is a placeholder with no substantive content.

Classification
Stub 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: unknown
No auth needed
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 1 stars
by mylo-2001 · poc
https://github.com/mylo-2001/AtlassianPwn

This repository contains a functional exploit for CVE-2023-22527, targeting Atlassian Confluence versions below 8.5.4. The exploit leverages a template injection vulnerability to achieve remote code execution (RCE) via a crafted payload sent to the `/template/aui/email/velocity.vm` endpoint.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence < 8.5.4
No auth needed
Prerequisites: Network access to the target Confluence instance · Target running a vulnerable version of Confluence
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WORKING POC 1 stars
by kh4sh3i · remote
https://github.com/kh4sh3i/CVE-2023-22527

The repository contains a functional Python script that exploits CVE-2023-22527, a Server-Side Template Injection (SSTI) vulnerability in Atlassian Confluence. The exploit sends a crafted payload to the `/template/aui/text-inline.vm` endpoint, leveraging OGNL expression injection to achieve remote code execution (RCE).

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence (versions 8.0.x, 8.1.x, 8.2.x, 8.3.x, 8.4.x, 8.5.0-8.5.3)
No auth needed
Prerequisites: Network access to the target Confluence instance · Vulnerable version of Confluence
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 1 stars
by MaanVader · remote
https://github.com/MaanVader/CVE-2023-22527-POC

The repository contains a functional exploit for CVE-2023-22527, an OGNL injection vulnerability in Atlassian Confluence, allowing unauthenticated remote code execution. It includes a Docker setup for testing and an exploit script with multiple execution modes.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Data Center and Server (8.0.x, 8.1.x, 8.2.x, 8.3.x, 8.4.x, 8.5.0-8.5.3)
No auth needed
Prerequisites: Network access to the target Confluence instance · Vulnerable version of Confluence running
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WRITEUP 1 stars
by ga0we1 · poc
https://github.com/ga0we1/CVE-2023-22527_Confluence_RCE

This repository provides a technical analysis of CVE-2023-22527, an RCE vulnerability in Confluence Data Center and Server. It includes references, a patch diff, and a code snippet showing the fix for blocking specific OGNL variable references.

Classification
Writeup 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence Data Center and Server
No auth needed
Prerequisites: Access to a vulnerable Confluence instance
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC
by thompson005 · poc
https://github.com/thompson005/CVE-2023-22527

This repository contains functional exploit code demonstrating template injection in Atlassian Confluence, leading to remote code execution (RCE). The payloads include various techniques for information disclosure, file system access, command execution, and persistence.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence
No auth needed
Prerequisites: Access to a vulnerable Confluence instance · Ability to send crafted Velocity template payloads
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC
by YongYe-Security · remote
https://github.com/YongYe-Security/CVE-2023-22527

This repository contains a functional exploit for CVE-2023-22527, a template injection vulnerability in Confluence. The exploit leverages OGNL injection to execute arbitrary commands on vulnerable Confluence instances.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence (versions 8.0.x, 8.1.x, 8.2.x, 8.3.x, 8.4.x, 8.5.0, 8.5.1, 8.5.2, 8.5.3)
No auth needed
Prerequisites: Target must be running a vulnerable version of Confluence · Network access to the target
devstral-2 · analyzed Feb 18, 2026 Full analysis →
metasploit WORKING POC EXCELLENT
by Rahul Maini, Harsh Jaiswal, Spencer McIntyre · rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_confluence_rce_cve_2023_22527.rb

This Metasploit module exploits CVE-2023-22527, an SSTI injection in Atlassian Confluence, allowing remote command execution via OGNL injection. It supports both Unix and Windows targets and includes version detection and platform identification.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Atlassian Confluence (8.0 to 8.4, 8.5.0 to 8.5.3)
No auth needed
Prerequisites: Network access to the Confluence server · Confluence server running a vulnerable version
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

Atlassian Confluence - Remote Code Execution
CRITICALby iamnooob,rootxharsh,pdresearch
Shodan: http.component:"Atlassian Confluence" || http.component:"atlassian confluence"
FOFA: app="atlassian-confluence"

Scores

CVSS v3 9.8
EPSS 0.9435
EPSS Percentile 100.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable yes
Technical Impact total

Details

CISA KEV 2024-01-24
VulnCheck KEV 2024-01-19
InTheWild.io 2024-01-23
ENISA EUVD EUVD-2023-26667
Ransomware Use Confirmed
CWE
CWE-74
Status published
Products (3)
atlassian/confluence_data_center 8.7.0
atlassian/confluence_data_center 8.0.0 - 8.5.4
atlassian/confluence_server 8.0.0 - 8.5.4
Published Jan 16, 2024
KEV Added Jan 24, 2024
Tracked Since Feb 18, 2026