CVE-2026-35054

MEDIUM

6.4

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.

CVE Details

CVSS v3.1 Score6.4

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/1/2026

Last Modified4/1/2026

Sourcenvd

Honeypot Sightings0

Affected Products

xenforo:xenforo

Weaknesses (CWE)

CWE-79

References

https://www.vulncheck.com/advisories/xenforo-stored-cross-site-scripting-via-bb-code-rendering(disclosure@vulncheck.com)

https://xenforo.com/community/threads/xenforo-2-3-9-inc-xfmg-2-2-18-released-security-fix.235659/(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.