CVE-2026-33707

CRITICAL SEVERITY

CVSS Score & Metrics

Base Score

9.4 / 10

Vector String

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

Vulnerability 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.

Vulnerability Details

Published Date

April 10, 2026

Last Modified

April 13, 2026

CWE ID

CWE-640

Source

NVD

Vendor

chamilo

Product

chamilo-lms

External References

https://github.com/chamilo/chamilo-lms/commit/078d7e5b77679fa7ccfcd6783bd5cc683db0bda8
https://github.com/chamilo/chamilo-lms/commit/750a45312a0d5c3ad60dbfbd0d959ca40be4a18c
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-f27g-66gq-g7v2

CVE-2026-33707

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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