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.
Published: 2026-09-30
Score: 4.6 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 30 Sep 2026 09:00:00 +0000

Type Values Removed Values Added
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.
Title Moodle: xss in forum post templates due to insufficient escaping
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: fedora

Published:

Updated: 2026-09-30T08:36:08.405Z

Reserved: 2026-09-29T14:03:38.494Z

Link: CVE-2026-102581

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-30T09:17:15.213

Modified: 2026-09-30T09:17:15.213

Link: CVE-2026-102581

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')