CVE-2026-32893CWE-79

Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination

Medium · published April 10, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
14.3
In the wild
Unconfirmed
What it is

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting (XSS) vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $_GET parameters via array_merge() and outputs the result via http_build_query() directly into HTML href attributes without htmlspecialchars() encoding. This vulnerability is fixed in 2.0.0-RC.3.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00240 · 14.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-10T17:42Z
EPSS history
Timeline
  • 10 APR 17:42Z
    Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination
    cvelistv5