Chamilo is a learning management system. Prior to version 1.11.30, the open parameter of help.php fails to properly sanitize user input. This allows an attacker to inject arbitrary HTML, such as underlined text, via a crafted URL. This issue has been patched in version 1.11.30.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
chamilo chamilo-lms affected
Version Status Constraints
< 1.11.30 affected —

No data.

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/chamilo/chamilo-lms/commit/083b1d2b0c29b0cc0313a28165ad47bebae9dcb2 cve-icon cve-icon
https://github.com/chamilo/chamilo-lms/commit/1ee2d8bb61b67e08946cd80b1a9b92c1a9959c7b cve-icon cve-icon
https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.30 cve-icon cve-icon
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-6fmm-qrx4-wgqc cve-icon cve-icon
History

Mon, 02 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 02 Mar 2026 16:00:00 +0000

Type Values Removed Values Added
Description Chamilo is a learning management system. Prior to version 1.11.30, the open parameter of help.php fails to properly sanitize user input. This allows an attacker to inject arbitrary HTML, such as underlined text, via a crafted URL. This issue has been patched in version 1.11.30.
Title Chamilo: HTML injection via open parameter
Weaknesses CWE-80
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-02T16:19:51.286Z

Reserved: 2025-06-18T03:55:52.035Z

Link: CVE-2025-52564

cve-icon Vulnrichment

Updated: 2026-03-02T16:19:39.944Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-03-02T16:16:22.237

Modified: 2026-03-02T20:29:29.330

Link: CVE-2025-52564

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses