CVE-2026-35055

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

6.1 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

April 01, 2026

Last Modified

April 01, 2026

CWE ID

CWE-79

Source

NVD

Vendor

XenForo

Product

XenForo

External References

https://www.vulncheck.com/advisories/xenforo-cross-site-scripting-via-lightbox-in-posts
https://xenforo.com/community/threads/xenforo-2-3-9-inc-xfmg-2-2-18-released-security-fix.235659/

CVE-2026-35055

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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