CVE-2026-33707CRITICAL 9.8EPSS p33.3%

CVE-2026-33707CVE-2026-33707

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.42% probability of exploitation · percentile 33.3% · 2026-06-19T12:03:05Z
Published2026-04-10
Last modified2026-04-16

Underlying weaknesses· 1

CWE-640

References

  1. https://github.com/chamilo/chamilo-lms/commit/078d7e5b77679fa7ccfcd6783bd5cc683db0bda8
  2. https://github.com/chamilo/chamilo-lms/commit/750a45312a0d5c3ad60dbfbd0d959ca40be4a18c
  3. https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-f27g-66gq-g7v2

1

TypeTargetConfidenceTier
WeaknessWeak Password Recovery Mechanism for Forgotten Passwordcwe-6400%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.