CVE-2026-32893: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in chamilo chamilo-lms
Chamilo LMS versions from 2. 0. 0-alpha. 1 up to but not including 2. 0. 0-RC. 3 contain a reflected cross-site scripting (XSS) vulnerability in the exercise question list admin panel. This flaw arises because user-supplied GET parameters are merged and output into HTML href attributes without proper encoding, allowing execution of arbitrary JavaScript in the browser of an authenticated teacher. The vulnerability is fixed starting with version 2. 0.
AI Analysis
Technical Summary
Chamilo LMS prior to version 2.0.0-RC.3 suffers from a reflected XSS vulnerability (CWE-79) in the exercise question list admin panel. The issue occurs because the pagination code merges all $_GET parameters using array_merge() and then outputs them via http_build_query() directly into HTML href attributes without applying htmlspecialchars() encoding. This improper neutralization of input enables an attacker to inject and execute arbitrary JavaScript in the context of an authenticated teacher's browser. The vulnerability is resolved in version 2.0.0-RC.3.
Potential Impact
An attacker can execute arbitrary JavaScript code in the browser of an authenticated teacher user by exploiting this reflected XSS vulnerability. This could lead to actions such as session hijacking or performing unauthorized actions with the teacher's privileges. The vulnerability does not impact availability and requires user interaction (clicking a crafted link). The CVSS vector indicates network attack vector, low attack complexity, privileges required, user interaction required, and partial confidentiality and integrity impact.
Mitigation Recommendations
This vulnerability is fixed in Chamilo LMS version 2.0.0-RC.3. Users should upgrade to version 2.0.0-RC.3 or later to remediate this issue. Since no official patch or temporary fix is separately provided, upgrading is the recommended remediation. No additional vendor advisory content is available to suggest alternative mitigations.
CVE-2026-32893: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in chamilo chamilo-lms
Description
Chamilo LMS versions from 2. 0. 0-alpha. 1 up to but not including 2. 0. 0-RC. 3 contain a reflected cross-site scripting (XSS) vulnerability in the exercise question list admin panel. This flaw arises because user-supplied GET parameters are merged and output into HTML href attributes without proper encoding, allowing execution of arbitrary JavaScript in the browser of an authenticated teacher. The vulnerability is fixed starting with version 2. 0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Chamilo LMS prior to version 2.0.0-RC.3 suffers from a reflected XSS vulnerability (CWE-79) in the exercise question list admin panel. The issue occurs because the pagination code merges all $_GET parameters using array_merge() and then outputs them via http_build_query() directly into HTML href attributes without applying htmlspecialchars() encoding. This improper neutralization of input enables an attacker to inject and execute arbitrary JavaScript in the context of an authenticated teacher's browser. The vulnerability is resolved in version 2.0.0-RC.3.
Potential Impact
An attacker can execute arbitrary JavaScript code in the browser of an authenticated teacher user by exploiting this reflected XSS vulnerability. This could lead to actions such as session hijacking or performing unauthorized actions with the teacher's privileges. The vulnerability does not impact availability and requires user interaction (clicking a crafted link). The CVSS vector indicates network attack vector, low attack complexity, privileges required, user interaction required, and partial confidentiality and integrity impact.
Mitigation Recommendations
This vulnerability is fixed in Chamilo LMS version 2.0.0-RC.3. Users should upgrade to version 2.0.0-RC.3 or later to remediate this issue. Since no official patch or temporary fix is separately provided, upgrading is the recommended remediation. No additional vendor advisory content is available to suggest alternative mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-16T21:03:44.422Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d938791cc7ad14dad95283
Added to database: 4/10/2026, 5:50:49 PM
Last enriched: 4/10/2026, 6:06:43 PM
Last updated: 4/10/2026, 9:05:15 PM
Views: 6
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