CVE-2023-53904 MEDIUM

CVE-2023-53904: Xenforo 2.2.13 Authenticated Stored Cross-Site Scripting via Smilie Categories

Vendor Xenforo
Product Xenforo
Weakness CWE-79 · XSS
Published December 17, 2025
Last update April 7, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

Xenforo 2.2.13 contains a stored cross-site scripting vulnerability that allows authenticated administrators to inject malicious scripts through the smilie category title parameter. Attackers can create a smilie category with a malicious script that will execute when the admin panel is loaded, potentially enabling further client-side attacks.

Key dates

02Disclosure timeline

December 17, 2025 CVE published
April 7, 2026 Record updated