moodle: stored XSS via user's name on participants page when opening some options (CVE-2024-33998)
A stored cross-site scripting (XSS) vulnerability exists in Moodle due to insufficient escaping of participants' names on the participants page table. This vulnerability can be triggered when interacting with certain features on that page, potentially allowing malicious scripts to be stored and executed in users' browsers. The issue affects multiple Moodle versions prior to specific patched releases. A patch is available to address this vulnerability.
AI Analysis
Technical Summary
CVE-2024-33998 is a stored XSS vulnerability in Moodle caused by insufficient escaping of user names displayed on the participants page table. When users interact with some options on this page, malicious scripts embedded in participant names may execute in the context of the victim's browser. This vulnerability affects Moodle versions prior to 4.1.10, versions from 4.2.0 up to but not including 4.2.7, and versions from 4.3.0 up to but not including 4.3.4. The vulnerability has been assigned a medium severity rating and a patch is available to remediate the issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of users viewing the participants page, potentially leading to session hijacking, unauthorized actions, or other client-side impacts. However, no known exploits in the wild have been reported to date.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade Moodle to versions 4.1.10 or later, 4.2.7 or later, or 4.3.4 or later to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
moodle: stored XSS via user's name on participants page when opening some options (CVE-2024-33998)
Description
A stored cross-site scripting (XSS) vulnerability exists in Moodle due to insufficient escaping of participants' names on the participants page table. This vulnerability can be triggered when interacting with certain features on that page, potentially allowing malicious scripts to be stored and executed in users' browsers. The issue affects multiple Moodle versions prior to specific patched releases. A patch is available to address this vulnerability.
Affected software
pkg:bitnami/moodleRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2024-33998 is a stored XSS vulnerability in Moodle caused by insufficient escaping of user names displayed on the participants page table. When users interact with some options on this page, malicious scripts embedded in participant names may execute in the context of the victim's browser. This vulnerability affects Moodle versions prior to 4.1.10, versions from 4.2.0 up to but not including 4.2.7, and versions from 4.3.0 up to but not including 4.3.4. The vulnerability has been assigned a medium severity rating and a patch is available to remediate the issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of users viewing the participants page, potentially leading to session hijacking, unauthorized actions, or other client-side impacts. However, no known exploits in the wild have been reported to date.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade Moodle to versions 4.1.10 or later, 4.2.7 or later, or 4.3.4 or later to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-moodle-2024-33998
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2024-33998"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Medium
- Cvss Version
- null
Threat ID: 6aa00618acd9273b49ab77b5
Added to database: 09/08/2026, 12:56:56 UTC
Last enriched: 09/08/2026, 13:45:00 UTC
Last updated: 09/08/2026, 22:52:02 UTC
Views: 9
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