CVE-2026-45146

HIGH
MEDIUM Priority: 0.02 BB Relevance: 59/100
Published: 2026-11-03 Modified: 2026-11-12 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Chamilo LMS is an open-source learning management system. Prior to 1.11.40 and 2.0.1, an authenticated administrator can call the get_sessions action in /main/inc/ajax/model.ajax.php with _search=true and a crafted JSON filters parameter whose groupOp field contains SQL syntax. Because groupOp is not restricted to the expected AND or OR operators before it is incorporated into query logic, attacker-controlled input is interpreted by the database and enables blind or time-based SQL injection. Successful exploitation can disclose sensitive user, course, session, configuration, password-reset, and administrative data, modify or delete records subject to database privileges, and cause denial of service through expensive delayed queries. This issue is fixed in versions 1.11.40 and 2.0.1.

Affected Software (4)

VendorProductVersion
chamilo chamilo-lms < 1.11.40
chamilo chamilo-lms >= 2.0.0, < 2.0.1
chamilo chamilo-lms < 1.11.40
chamilo chamilo-lms >= 2.0.0, < 2.0.1

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.2 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.32%
Raw Score 0.003170
Percentile 25.1%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00317
2026-11-13
0.00317
2026-11-12
0.00317
2026-11-10
0.00317
2026-11-09
0.00317
2026-11-08
0.00317
2026-11-07
0.00317
2026-11-06
0.00317
2026-11-05
0.00317
2026-11-04
0.00317

Intelligence Sources

mitre ref →
nvd ref →