Is CVE-2025-52564 actively exploited?

CVE-2025-52564 has no public evidence of in-the-wild exploitation as of 2026-03-03.

What is the CVSS score for CVE-2025-52564?

CVE-2025-52564 has a CVSS score of 6.9 (MEDIUM severity). 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2025-52564?

Patch guidance is available from chamilo security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-52564.

Which products are affected by CVE-2025-52564?

1 product: chamilo chamilo lms.

CVE-2025-52564 - remediation guidance & executive summary

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.

CVSS Metrics

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-80

Metadata

Primary Vendor: CHAMILO
Published: 3/2/2026
Last Modified: 3/3/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-52564

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary