CVE-2025-55208 json
Chamilo LMS has Stored Cross Site Scripting on Social Networks Uploaded Files
published 2026-03-05 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-208326
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
Chamilo is a learning management system. Versions prior to 1.11.34 have a Stored XSS through insecure file uploads in `Social Networks`. Through it, a low-privilege user can execute arbitrary code in the admin user inbox, allowing takeover of the admin account. Version 1.11.34 fixes the issue.
Patch / fix
- chamilo chamilo 1.11.34
- chamilo chamilo_lms 1.11.34
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
Affected products
- chamilo chamilo-lms
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
Sources
- CVE List CVE-2025-55208
- NVD CVE-2025-55208
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.