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Vulnerability record · CVE-2026-31940 · published 10 April 2026

CVE-2026-31940: Chamilo lms vulnerability

Chamilo · Chamilo Lms

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicc_hacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

8.8 CVSS 3.1 High EPSS 0.45% · top 63.3% CWE-384 · CWE-384
8.8CVSS 3.1 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicc_hacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9 Patch
https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869 Patch
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-33707Chamilo lms weak password recovery vulnerabilityChamilo 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…EPSS 0.75%9.8CVE-2025-50187Chamilo lms vulnerabilityChamilo is a learning management system. Prior to version 1.11.28, parameter from SOAP request is evaluated without filtering which leads to Remote C…EPSS 0.88%9.8CVE-2023-34944Chamilo lms unrestricted file upload vulnerabilityAn arbitrary file upload vulnerability in the /fileUpload.lib.php component of Chamilo 1.11.* up to v1.11.18 allows attackers to execute arbitrary co…EPSS 1.1%9.8CVE-2022-27423Chamilo lms sql injection vulnerabilityChamilo LMS v1.11.13 was discovered to contain a SQL injection vulnerability via the blog_id parameter at /blog/blog.php.EPSS 0.99%9.8CVE-2021-35414Chamilo lms sql injection vulnerabilityChamilo LMS v1.11.x was discovered to contain a SQL injection via the doc parameter in main/plagiarism/compilatio/upload.php.EPSS 1.9%9.8CVE-2019-13082Chamilo lms unrestricted file upload vulnerabilityChamilo LMS 1.11.8 and 2.x allows remote code execution through an lp_upload.php unauthenticated file upload feature. It extracts a ZIP archive befor…EPSS 4.0%9.8CVE-2018-1999019Chamilo lms code injection vulnerabilityChamilo LMS version 11.x contains an Unserialization vulnerability in the "hash" GET parameter for the api endpoint located at /webservices/api/v2.ph…EPSS 3.2%9.3CVE-2026-33698Chamilo lms vulnerabilityChamilo LMS is a learning management system. Prior to 1.11.38, a chained attack can enable otherwise-blocked PHP code from the main/install/ director…EPSS 0.58%

Source: NIST National Vulnerability Database (record CVE-2026-31940), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.