CVE-2026-33707

critical

Description

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 user's email can compute the reset token and change the victim's password without authentication. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

References

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-f27g-66gq-g7v2

https://github.com/chamilo/chamilo-lms/commit/750a45312a0d5c3ad60dbfbd0d959ca40be4a18c

https://github.com/chamilo/chamilo-lms/commit/078d7e5b77679fa7ccfcd6783bd5cc683db0bda8

Details

Source: Mitre, NVD

Published: 2026-04-10

Updated: 2026-04-10

Risk Information

CVSS v2

Base Score: 9.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:P

Severity: High

CVSS v3

Base Score: 9.4

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Severity: Critical