CVE-2023-53904

MEDIUM 4.6

Xenforo 2.2.13 Authenticated Stored Cross-Site Scripting via Smilie Categories

CVSS Score

4.6

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	xenforo
Product	xenforo
Published	Dec 17, 2025
Last Updated	Apr 7, 2026

Stay Ahead of the Next One

Get instant alerts for xenforo xenforo

Be the first to know when new medium vulnerabilities affecting xenforo xenforo are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Xenforo / Xenforo

2.2.13

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/51547 xenforo.com: https://xenforo.com/ vulncheck.com: https://www.vulncheck.com/advisories/xenforo-authenticated-stored-cross-site-scripting-via-smilie-categories

Credits

Furkan Karaarslan