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.
Published: 2026-04-01
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

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History

Wed, 01 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 01 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
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.
Title XenForo Stored Cross-Site Scripting via BB Code Rendering
First Time appeared Xenforo
Xenforo xenforo
Weaknesses CWE-79
CPEs cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*
Vendors & Products Xenforo
Xenforo xenforo
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Subscriptions

Xenforo Xenforo
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-01T13:37:39.225Z

Reserved: 2026-04-01T00:19:59.194Z

Link: CVE-2026-35054

cve-icon Vulnrichment

Updated: 2026-04-01T13:37:28.687Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-01T01:16:41.200

Modified: 2026-04-01T18:51:19.460

Link: CVE-2026-35054

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses