Chamilo LMS has an XML External Entity (XXE) Injection
Summary
| CVE | CVE-2026-33737 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-10 19:16:24 UTC |
| Updated | 2026-04-10 19:16:24 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.3 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Problem Types: CWE-611 | CWE-611 CWE-611: Improper Restriction of XML External Entity Reference
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | DECLARED | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Chamilo | Chamilo-lms | affected < 1.11.38 | Not specified |
| CNA | Chamilo | Chamilo-lms | affected >= 2.0.0-alpha.1, < 2.0.0-RC.3 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/chamilo/chamilo-lms/commit/af6b7002af7c15825e98fc522e2ead0d00... | [email protected] | github.com | |
| github.com/chamilo/chamilo-lms/security/advisories/GHSA-c4ww-qgf2-v89j | [email protected] | github.com | |
| github.com/chamilo/chamilo-lms/commit/22b1cb1c609b643765c88654155aba2707... | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.