Bug 2543634 (CVE-2026-102581)

Summary: CVE-2026-102581 moodle: XSS in forum post templates due to insufficient escaping
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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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.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2543837    
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Description OSIDB Bzimport 2026-09-29 20:36:11 UTC
A flaw was found in Moodle. Insufficient escaping in templates used to display forum posts resulted in a cross-site scripting (XSS) risk, allowing a stored script to execute in the browser of another user who views the affected forum post.