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 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 v3 9.4 CRITICAL

9.4^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:chamilo:chamilo_lms::::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha1::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha2::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha3::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha4::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha5::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta1::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta2::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta3::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc1::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc2::::::

History

No history.

Information

Published : 2026-04-10 19:16

Updated : 2026-06-17 10:37

NVD link : CVE-2026-33707

Mitre link : CVE-2026-33707

CVE.ORG link : CVE-2026-33707

JSON object : View

Products Affected

chamilo

chamilo_lms

CWE

CWE-640

Weak Password Recovery Mechanism for Forgotten Password

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