CVE-2026-34239 | Chamilo version 1.11.40 and earlier are vulnerable to authen… | CVSS 7.5 HIGH

Description

Chamilo version 1.11.40 and earlier are vulnerable to authenticated remote code execution in the main/inc/ajax/lang.ajax.php path. This endpoint is protected only by `api_protect_course_script(true)`, which means any authenticated user enrolled in a course (student, teacher, DRH) can reach it.

Metadata

CVE ID: CVE-2026-34239
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-03-26 16:22 UTC
Published: 2026-07-20 17:11 UTC
Last updated: 2026-07-20 18:24 UTC
Primary CWE: CWE-285
CWE-285: Improper Authorization
Vendor / Product: chamilo / chamilo-lms
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 4.0

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
chamilo	chamilo-lms	—	<= 1.11.40

Weakness (CWE)

CWE	Source	Description
CWE-285	cna	CWE-285: Improper Authorization

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.5	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References (1)

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4hwq-pv7c-3928 https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4hwq-pv7c-3928