CVE-2026-30882 Chamilo LMS: Reflected XSS in the session category listing page
Attackers can execute arbitrary JavaScript in victim browsers via reflected XSS in Chamilo LMS session category listings when pagination is active.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-30882?
CVE-2026-30882 is a medium-severity cross-site scripting vulnerability in Chamilo Chamilo Lms, published on 16 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-30882?
It affects 1 product.
Products include Chamilo Chamilo Lms.
How do I fix CVE-2026-30882?
No fix has been published for CVE-2026-30882 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-30882 being exploited?
There is no known exploitation of CVE-2026-30882 in the wild and no public exploit code.
Other vulnerabilities in Chamilo Chamilo Lms
Sources
Also known as GHSA-qg5f-gq95-9vhq.