medium6.1
CVE-2026-35055
XenForo before 2.3.9 and before 2.2.18 is vulnerable to cross-site scripting (XSS) related to lightbox usage in posts.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Xenforo | Xenforo | before 2.2.18 from 2.3.0 before 2.3.9 |