Chamilo LMS has unauthenticated access to Twig template source files exposes application logic

published 2026-04-10 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-21557

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits: 0; none known

Chamilo LMS is a learning management system. Prior to 1.11.38, Twig template files (.tpl) under /main/template/default/ are directly accessible without authentication via HTTP GET requests. These templates expose internal application logic, variable names, AJAX endpoint URLs, and admin panel structure. This vulnerability is fixed in 1.11.38.

Patch / fix

fixed in 1 links 1

chamilo chamilo_lms 1.11.38

github.com/chamilo/chamilo-lms@4efb5ee commit

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 6 mo ago (2026-04-15)

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

chamilo chamilo-lms

Classification

Weakness

CWE-538 Insertion of Sensitive Information into Externally-Accessible File or Directory

References

Sources

CVE List CVE-2026-33705
NVD CVE-2026-33705

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.

Summary