CVEvulnerability

CVE-2026-33710

7.5 HIGH Published 2026-04-10 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-04-10
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-330

Description

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, REST API keys are generated using md5(time() + (user_id * 5) - rand(10000, 10000)). The rand(10000, 10000) call always returns exactly 10000 (min == max), making the formula effectively md5(timestamp + user_id*5 - 10000). An attacker who knows a username and approximate key creation time can brute-force the API key. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

Affected configurations

• chamilo chamilo lms (< 1.11.38) • chamilo chamilo lms 2.0.0

Related

Weakness · CWE (1)

  • CWE-330 Use of Insufficiently Random Values weakness

References