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Global vulnerability → Enterprise Software and Database Management CRITICAL 17m Global vulnerability → Information Technology CRITICAL 50m Global malware → Financial Services HIGH 1h Global vulnerability → Technology/Software CRITICAL 1h Global vulnerability → Information Technology HIGH 2h Global data_breach → Government CRITICAL 11h Global ransomware → Financial Services / Cybersecurity CRITICAL 11h Global vulnerability → Information Technology / Cybersecurity CRITICAL 13h Global malware → Energy and Utilities CRITICAL 14h Global ransomware → Multiple sectors CRITICAL 14h Global vulnerability → Enterprise Software and Database Management CRITICAL 17m Global vulnerability → Information Technology CRITICAL 50m Global malware → Financial Services HIGH 1h Global vulnerability → Technology/Software CRITICAL 1h Global vulnerability → Information Technology HIGH 2h Global data_breach → Government CRITICAL 11h Global ransomware → Financial Services / Cybersecurity CRITICAL 11h Global vulnerability → Information Technology / Cybersecurity CRITICAL 13h Global malware → Energy and Utilities CRITICAL 14h Global ransomware → Multiple sectors CRITICAL 14h Global vulnerability → Enterprise Software and Database Management CRITICAL 17m Global vulnerability → Information Technology CRITICAL 50m Global malware → Financial Services HIGH 1h Global vulnerability → Technology/Software CRITICAL 1h Global vulnerability → Information Technology HIGH 2h Global data_breach → Government CRITICAL 11h Global ransomware → Financial Services / Cybersecurity CRITICAL 11h Global vulnerability → Information Technology / Cybersecurity CRITICAL 13h Global malware → Energy and Utilities CRITICAL 14h Global ransomware → Multiple sectors CRITICAL 14h

Vulnerabilities ›

CVE-2026-35054

Medium

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 u

CWE-79 — Weakness Type

                    Published: Apr 1, 2026                      ·  Modified: Apr 3, 2026                      ·  Source: NVD                

CVSS v3

6.4

🔗 NVD Official

📄 Description (English)

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.

🤖

Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 2

https://www.vulncheck.com/advisories/xenforo-stored-cross-site-scripting-via-bb-code-re...

disclosure@vulncheck.com

Third Party Advisory

https://xenforo.com/community/threads/xenforo-2-3-9-inc-xfmg-2-2-18-released-security-f...

disclosure@vulncheck.com

📦 Affected Products / CPE 1 entries

xenforo:xenforo

📊 CVSS Score

6.4

/ 10.0 — Medium

📊 CVSS Vector

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

Attack VectorN — None / Network

Attack ComplexityL — Low / Local

Privileges RequiredL — Low / Local

User InteractionN — None / Network

ScopeC — Changed

ConfidentialityL — Low / Local

IntegrityL — Low / Local

AvailabilityN — None / Network

📋 Quick Facts

Severity Medium

CVSS Score6.4

CWECWE-79

EPSS0.03%

Exploit No

Patch ✗ No

Published 2026-04-01

Source Feed nvd

🏷️ Tags

CWE-79

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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