Cross-site scripting in Chamilo LMS - CVE-2026-61577
Published: August 4, 2026
Vulnerability identifier: #VU140920
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-61577
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary JavaScript in a victim's authenticated session.
The vulnerability exists due to cross-site scripting in the social wall content rendering path when rendering stored wall posts or comments containing crafted HTML. A remote user can submit a crafted wall post or comment to execute arbitrary JavaScript in a victim's authenticated session.
User interaction is required when a victim opens the affected user's social wall.
Affected software
Chamilo LMS
How to mitigate CVE-2026-61577
Install security update from vendor's website.
Chamilo LMS - update to 2.0.3