XSS in Chamilo Chamilo-Lms
CVE-2025-52470
Chamilo is a learning management system. Prior to version 1.11.30, a stored cross-site scripting (XSS) vulnerability exists in the session_category_add.php script. The vulnerability is caused by improper sanitization of the Category Name field, allowing privileged users to inject persistent JavaScript payloads. The injected script is later executed when accessing add_many_sessions_to_category.php, potentially compromising administrative sessions. This issue has been patched in version 1.11.30.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (10.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Chamilo Chamilo-Lms — versions < 1.11.30
- Chamilo Lms
Weakness classification (CWE)
References
- github.com/chamilo/chamilo-lms/security/advisories/GHSA-p4m6-gwhg-x89f (Exploit, Vendor Advisory)
- github.com/chamilo/chamilo-lms/commit/ead79db4eb034b8c11a3d6036759d083de37530c (Patch)
- github.com/chamilo/chamilo-lms/releases/tag/v1.11.30 (Product, Release Notes)
Frequently asked questions
- What is CVE-2025-52470?
- CVE-2025-52470 is a medium-severity vulnerability in Chamilo Chamilo-Lms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-03-02.
- How severe is CVE-2025-52470?
- Medium severity. CVSS v3 base score is 4.8 out of 10.