5.4

CVE-2026-102581

Moodle: xss in forum post templates due to insufficient escaping

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Moodle ≫ Moodle Version < 4.5.13
Moodle ≫ Moodle Version >= 5.0.0 < 5.0.9
Moodle ≫ Moodle Version >= 5.1.0 < 5.1.6
Moodle ≫ Moodle Version >= 5.2.0 < 5.2.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.058
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.4 2.3 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
patrick@puiterwijk.org 4.6 2.1 2.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://moodle.org/mod/forum/discuss.php?d=482499
Vendor Advisory
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88981
Patch
https://access.redhat.com/security/cve/CVE-2026-102581
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2543634
Third Party Advisory
Issue Tracking