CVE-2025-55289
Chamilo: Stored Cross Site Scripting in Skills Argumentation
Description
Chamilo is a learning management system. Prior to version 1.11.34, there is a stored XSS vulnerability in Chamilo LMS (Verison 1.11.32) allows an attacker to inject arbitrary JavaScript into the platform’s social network and internal messaging features. When viewed by an authenticated user (including administrators), the payload executes in their browser within the LMS context. This enables full account takeover via session hijacking, unauthorized actions with the victim’s privileges, exfiltration of sensitive data, and potential self-propagation to other users. This issue has been patched in version 1.11.34.
INFO
Published Date :
March 6, 2026, 4:16 a.m.
Last Modified :
March 9, 2026, 5:30 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update Chamilo LMS to version 1.11.34 or later.
- Verify the update is applied successfully.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-55289.
| URL | Resource |
|---|---|
| https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.34 | Product Release Notes |
| https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-cchj-3qmf-82j5 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-55289 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-55289
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-55289 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-55289 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 09, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:* versions up to (excluding) 1.11.34 Added Reference Type GitHub, Inc.: https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.34 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-cchj-3qmf-82j5 Types: Vendor Advisory -
New CVE Received by [email protected]
Mar. 06, 2026
Action Type Old Value New Value Added Description Chamilo is a learning management system. Prior to version 1.11.34, there is a stored XSS vulnerability in Chamilo LMS (Verison 1.11.32) allows an attacker to inject arbitrary JavaScript into the platform’s social network and internal messaging features. When viewed by an authenticated user (including administrators), the payload executes in their browser within the LMS context. This enables full account takeover via session hijacking, unauthorized actions with the victim’s privileges, exfiltration of sensitive data, and potential self-propagation to other users. This issue has been patched in version 1.11.34. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-79 Added Reference https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.34 Added Reference https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-cchj-3qmf-82j5