CVE-2021-47907

MEDIUM

Rocket LMS 1.1 Persistent Cross-Site Scripting via Support Tickets

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47907. PoCs published by Vulnerability-Lab.

AI-analyzed exploit summary This is a detailed technical writeup describing a persistent XSS vulnerability in Rocket LMS 1.1, including the vulnerable parameter, affected module, and proof-of-concept payload. It provides HTTP request logs and affected code snippets.

Description

Rocket LMS 1.1 contains a persistent cross-site scripting vulnerability in the support ticket module that allows authenticated users to inject malicious script code through the title parameter. Attackers can submit support tickets with embedded HTML/JavaScript payloads that execute in the browsers of other users viewing the message history, enabling session hijacking and phishing attacks.

Exploits (1)

exploitdb WRITEUP
by Vulnerability-Lab · textwebappsphp
https://www.exploit-db.com/exploits/50677

This is a detailed technical writeup describing a persistent XSS vulnerability in Rocket LMS 1.1, including the vulnerable parameter, affected module, and proof-of-concept payload. It provides HTTP request logs and affected code snippets.

Classification
Writeup 95%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Rocket LMS v1.1
Auth required
Prerequisites: low-privileged user account
devstral-2 · analyzed May 10, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit exploit
ExploitDB-50677
https://www.exploit-db.com/exploits/50677
Product product
Official Product Homepage
https://lms.rocket-soft.org/
Third Party Advisory third-party-advisory
VulnCheck Advisory: Rocket LMS 1.1 Persistent Cross-Site Scripting via Support Tickets
https://www.vulncheck.com/advisories/rocket-lms-persistent-cross-site-scripting-via-support-tickets

Scores

CVSS v3 6.4
EPSS 0.0024
EPSS Percentile 14.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
Rocketsoft/Rocket LMS 1.1
Published May 10, 2026
Tracked Since May 10, 2026