CVE-2026-33707

CRITICAL

9.4

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.

CVE Details

CVSS v3.1 Score9.4

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/10/2026

Last Modified4/16/2026

Sourcenvd

Honeypot Sightings0

Affected Products

chamilo:chamilo_lms

Weaknesses (CWE)

CWE-640

References

https://github.com/chamilo/chamilo-lms/commit/078d7e5b77679fa7ccfcd6783bd5cc683db0bda8(security-advisories@github.com)

https://github.com/chamilo/chamilo-lms/commit/750a45312a0d5c3ad60dbfbd0d959ca40be4a18c(security-advisories@github.com)

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

IOC Correlations

No correlations recorded

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