CVE-2026-30882
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
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Description
Chamilo LMS is a learning management system. Chamilo LMS version 1.11.34 and prior contains a Reflected Cross-Site Scripting (XSS) vulnerability in the session category listing page. The keyword parameter from $_REQUEST is echoed directly into an HTML href attribute without any encoding or sanitization. An attacker can inject arbitrary HTML/JavaScript by breaking out of the attribute context using ">followed by a malicious payload. The vulnerability is triggered when the pagination controls are rendered - which occurs when the number of session categories exceeds 20 (the page limit). This issue has been patched in version 1.11.36.
Analysis
Chamilo LMS versions 1.11.34 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability in the session category listing page where the keyword parameter is echoed directly into an HTML href attribute without encoding or sanitization. An attacker can inject arbitrary JavaScript by breaking out of the attribute context using a ">" payload, enabling session hijacking, credential theft, or malware distribution to any user who clicks a malicious link. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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