Critical vulnerability
Critical cross-site scripting in Chamilo LMS (CVE-2026-54749)
Cross-site scripting in Chamilo LMS · Servers and applications
CVE-2026-54749
Broken authorization in custom API controllers: cross-course document overwrite (stored XSS), unauthenticated video-conference meeting hijack, and cross-course grade tampering (<3.0.0)
- Severity
- Critical 9.4
- Published
- 3 Nov 2026
- Fixed in
- 3.0.0
| Software | Affected versions |
|---|---|
| Chamilo LMSServers and applications |
|
- CVE.org https://www.cve.org/CVERecord?id=CVE-2026-54749
- GitHub Advisory Database https://github.com/advisories/GHSA-j448-mmvh-r877
- github.com https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-j448-mmvh-r877
From NVD, the CVE Program, OSV.dev with the GitHub Advisory Database, WPVulnerability, WordPress's security advisories and CISA's Known Exploited Vulnerabilities catalog, as they stood when this was written. Each vulnerability's own page has its latest rating and fix. This product uses the NVD API but is not endorsed or certified by the NVD.