Medium 5.4Published Apr 10, 2026

CVE-2026-32893Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination

Updated under an hour ago (Oct 27, 2026, 5:30 AM ET)

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Every CVE for chamilo-lms

Exploited in the last 30 days

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting (XSS) vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $_GET parameters via array_merge() and outputs the result via http_build_query() directly into HTML href attributes without htmlspecialchars() encoding. This vulnerability is fixed in 2.0.0-RC.3.

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Apr 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

chamilo chamilo-lms chamilo:lms (from the name)	from 2.0.0-alpha.1, < 2.0.0-RC.3	CNA record
chamilo chamilo_lms chamilo:chamilo_lms	2.0.0; 2.0.0; 2.0.0; 2.0.0; 2.0.0; 2.0.0; 2.0.0; 2.0.0; and 2 more ranges	NVD

References

References

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-37jh-g64j-88mc	x-refsource-confirm, vendor-advisory
https://github.com/chamilo/chamilo-lms/commit/72bc403f89b1ebb73a139f8f6cf0478857592276	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.