PT-2025-51942 · Xenforo · Xenforo

Furkan Karaarslan · Published 2025-12-17 · Updated 2025-12-20 · CVE-2023-53904

Positive Technologies (AI Summary)

CVSS v3.1

4.6

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Xenforo version 2.2.13

Description The software contains a stored cross-site scripting issue. Authenticated administrators can inject malicious scripts through the smilie category title parameter. Creating a smilie category with a malicious script can lead to script execution when the admin panel is loaded, potentially enabling further client-side attacks. The vulnerable parameter is smilie category title.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, sanitize the smilie category title input to prevent script injection.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-53904

Affected Products

Xenforo

References · 5

• 🔥 https://exploit-db.com/exploits/51547 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53904 · Security Note
• https://twitter.com/CVEnew/status/2002487800789397863 · Twitter Post
• https://vulncheck.com/advisories/xenforo-authenticated-stored-cross-site-scripting-via-smilie-categories · Note
• https://xenforo.com · Note