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

CVE-2026-35055

Description

XenForo before 2.3.9 and before 2.2.18 is vulnerable to cross-site scripting (XSS) related to lightbox usage in posts. An attacker can inject malicious scripts that execute when users interact with post content displayed in the lightbox.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Xenforo/Xenforo2 versions
cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*range: <2.2.18
- (no CPE)range: <2.3.9, <2.2.18

Patches

Vulnerability mechanics

References

www.vulncheck.com/advisories/xenforo-cross-site-scripting-via-lightbox-in-postsnvdThird 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	0.397
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000