CVE-2018-16836

CRITICAL EXPLOITED NUCLEI

Rubedo < 3.4.0 - Unauthenticated Path Traversal via Theme Component

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2018-16836 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including Marouene Boubakri. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit demonstrates a directory traversal vulnerability in Rubedo CMS 3.4.0, allowing an attacker to read arbitrary files (e.g., /etc/passwd) via URL-encoded dot-dot-slash sequences. The PoC is a simple path traversal payload without additional obfuscation or malicious intent.

Description

Rubedo through 3.4.0 contains a Directory Traversal vulnerability in the theme component, allowing unauthenticated attackers to read and execute arbitrary files outside of the service root path, as demonstrated by a /theme/default/img/%2e%2e/..//etc/passwd URI.

Exploits (1)

exploitdb WORKING POC
by Marouene Boubakri · textwebappslinux
https://www.exploit-db.com/exploits/45385

This exploit demonstrates a directory traversal vulnerability in Rubedo CMS 3.4.0, allowing an attacker to read arbitrary files (e.g., /etc/passwd) via URL-encoded dot-dot-slash sequences. The PoC is a simple path traversal payload without additional obfuscation or malicious intent.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Rubedo CMS through 3.4.0
No auth needed
Prerequisites: Network access to the target Rubedo CMS instance
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

Rubedo CMS <=3.4.0 - Directory Traversal
CRITICALby 0x_Akoko

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/maroueneboubakri/CVE/tree/master/rubedo-cms
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/45385/

Scores

CVSS v3 9.8
EPSS 0.6144
EPSS Percentile 99.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

VulnCheck KEV 2025-06-07
CWE
CWE-22
Status published
Products (1)
rubedo_project/rubedo < 3.4.0
Published Sep 11, 2018
Tracked Since Feb 18, 2026