CVE-2026-33707

CRITICAL EPSS 34.2%
Published Apr 10, 20262mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Apr 10, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
34.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-640

Affected Products 11

VendorProductVersionRange
chamilochamilo_lms* <1.11.38
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any

References 3

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

Remediation

  • github.com https://github.com/chamilo/chamilo-lms/commit/078d7e5b77679fa7ccfcd6783bd5cc683db0bda8
    Patch
  • github.com https://github.com/chamilo/chamilo-lms/commit/750a45312a0d5c3ad60dbfbd0d959ca40be4a18c
    Patch