Medium severity6.4NVD Advisory· Published Apr 1, 2026· Updated Apr 1, 2026

CVE-2026-35054

Description

XenForo before 2.3.9 is vulnerable to stored cross-site scripting (XSS) related to BB code rendering. An attacker can inject malicious scripts through BB code that are stored and executed when other users view the content.

Affected products

Xenforo/Xenforo
cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*
Range: <2.3.9

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.vulncheck.com/advisories/xenforo-stored-cross-site-scripting-via-bb-code-renderingnvdThird Party Advisory
xenforo.com/community/threads/xenforo-2-3-9-inc-xfmg-2-2-18-released-security-fix.235659/nvdRelease Notes

News mentions

No linked articles in our index yet.

cvss	0.416
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000