Vulnerability · Published Mar 16, 2026 · Assigned by GitHub_M

CVE-2026-30882Chamilo LMS: Reflected XSS in the session category listing page

Medium 6.1

In plain English

A medium-severity cross-site scripting in chamilo-lms from chamilo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.2%top 89.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Chamilo LMS is a learning management system. Chamilo LMS version 1.11.34 and prior contains a Reflected Cross-Site Scripting (XSS) vulnerability in the session category listing page. The keyword parameter from $_REQUEST is echoed directly into an HTML href attribute without any encoding or sanitization. An attacker can inject arbitrary HTML/JavaScript by breaking out of the attribute context using ">followed by a malicious payload. The vulnerability is triggered when the pagination controls are rendered — which occurs when the number of session categories exceeds 20 (the page limit). This issue has been patched in version 1.11.36.

Affected products (as reported)

Vendor	Product	Versions
chamilo	chamilo-lms	< 1.11.36

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-qg5f-gq95-9vhq x_refsource_CONFIRM
https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.36 x_refsource_MISC