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CRITICAL · 9.4

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 r...

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.

CVSS Score

9.4

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW

Affected Products

VendorProductVersions
ChamiloChamilo Lms< 1.11.38

Related Weaknesses (CWE)

CWE-640

References

FAQ

What is CVE-2026-33707?

CVE-2026-33707 is a vulnerability with a CVSS score of 9.4 (CRITICAL). 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 r...

How severe is CVE-2026-33707?

CVE-2026-33707 has been rated CRITICAL with a CVSS base score of 9.4/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-33707?

Check the references section above for vendor advisories and patch information. Affected products include: Chamilo Chamilo Lms.