CVE-2023-53904

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 v4.0

5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

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

EPSS

0.26% chance of exploitation in the next 30 days, 18th percentile

Published

2025-12-17

Updated

2026-04-07

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51547

References

• CVE Record
• NVD entry

Related

• CVE-2023-53903
• CVE-2023-53905
• CVE-2023-53902
• CVE-2023-53906
• CVE-2023-53901
• CVE-2023-53907