Vulnerability in Chamilo Chamilo-lms
CVE-2026-33707
Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, the default password reset mechanism generates tokens using sha1($email) with no random component, no expiration, and no rate limiting. An attacker who knows a u…
EPSS: 0.001 (30.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.
Affected products
- Chamilo Chamilo-lms — versions < 1.11.38, >= 2.0.0-alpha.1, < 2.0.0-RC.3
Weakness classification (CWE)
References
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-f27g-66gq-g7v2 (x_refsource_CONFIRM)
- https://github.com/chamilo/chamilo-lms/commit/078d7e5b77679fa7ccfcd6783bd5cc683db0bda8 (x_refsource_MISC)
- https://github.com/chamilo/chamilo-lms/commit/750a45312a0d5c3ad60dbfbd0d959ca40be4a18c (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-33707?
- CVE-2026-33707 is a critical-severity vulnerability in Chamilo Chamilo-lms, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 9.4/10. Published 2026-04-10.
- How severe is CVE-2026-33707?
- Critical severity. CVSS v3 base score is 9.4 out of 10.