Medium 4.6Published Dec 17, 2025

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

Updated under an hour ago (Oct 28, 2026, 2:23 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 4.6 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Apr 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Xenforo Xenforo xenforo:xenforo (from the name)	2.2.13	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.