Vulnerability · Published Apr 10, 2026 · Assigned by GitHub_M
CVE-2026-33737Chamilo LMS has an XML External Entity (XXE) Injection
Medium 5.3
In plain English
A medium-severity XML external entity in chamilo-lms from chamilo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 87.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, multiple files use simplexml_load_string() without XXE protection. With LIBXML_NOENT flag, arbitrary server files can be read. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| chamilo | chamilo-lms | < 1.11.38>= 2.0.0-alpha.1, < 2.0.0-RC.3 |
Weakness: CWE-611 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-c4ww-qgf2-v89j x_refsource_CONFIRM
- https://github.com/chamilo/chamilo-lms/commit/22b1cb1c609b643765c88654155aba27070c927e x_refsource_MISC
- https://github.com/chamilo/chamilo-lms/commit/af6b7002af7c15825e98fc522e2ead0d00cacaa3 x_refsource_MISC