Moodle: xss in forum post templates due to insufficient escaping (moodle)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.20 % · percentile 10 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- fedora
- NVD status
- Analyzed
Description
A flaw was found in Moodle. Insufficient output escaping in templates used to display forum posts enables a stored cross-site scripting (XSS) vulnerability. An attacker can inject malicious content into a forum post, which then executes arbitrary script code in the browser of another user viewing the affected post.
Weaknesses (CWE)
- CWE-79 — Improper Neutralization of Input During Web Page Generation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N | fedora |
| CVSS 3.1 | MEDIUM 4.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N | NVD · patrick@puiterwijk.org (Secondary) |
| CVSS 3.1 | MEDIUM 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-89720
- GCVE · GCVE-0-2026-102581
Affected configurations (NVD CPE)
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*< 4.5.13cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*≥ 5.0.0 < 5.0.9cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*≥ 5.1.0 < 5.1.6cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*≥ 5.2.0 < 5.2.2
Affected products
| Product | Versions |
|---|---|
| moodle | affected 5.2.0 < 5.2.2 ; affected 5.1.0 < 5.1.6 ; affected 5.0.0 < 5.0.9 ; affected 0 < 4.5.13 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |