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.
SeverityCritical
CVSS9.4
Exploit probability37. percentile0.4%
Product
Chamilo Lms
PublishedApr 10, 2026
First seenApr 10, 2026
Weakness typeCWE-640CWE-640
How to fix
Update
- chamilo chamilo_lms1.11.38 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| chamilo chamilo_lms | v < 1.11.38, 2.0.0 | 1.11.38 |
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