Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-35057 Details

Description

XenForo before 2.3.10 and before 2.2.19 is vulnerable to stored cross-site scripting (XSS) in structured text mentions, primarily affecting legacy profile post content. An attacker can inject malicious scripts through crafted mentions that are stored and executed when other users view the content.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:6.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/methosiea/xenforo-2-xss	[email protected]	ExploitThird Party Advisory
https://xenforo.com/community/threads/xenforo-2-3-10-add-ons-and-2-2-19-released-includes-security-fix.236249/	[email protected]	Release Notes

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
xenforo xenforo	< 2.2.19 >= 2.3.0, < 2.3.10
CPE cpe:2.3:a:xenforo:xenforo:::::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 1, 2026	Initial Analysis	[email protected]
Apr 1, 2026	CVE Modified	[email protected]
Apr 1, 2026	New CVE Received	[email protected]