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2963 articles · 106575 vulns · 38/41 feeds (7d)
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8.8
CVE-2026-35056KEVEXPLOITEDPATCHED
xenforo

XenForo Remote Code Execution via Authenticated Admin

Description

XenForo before 2.3.9 and before 2.2.18 allows remote code execution (RCE) by authenticated, but malicious, admin users. An attacker with admin panel access can execute arbitrary code on the server.

Affected Products

VendorProductVersions
xenforo—2.3.0, 0

References

  • https://xenforo.com/community/threads/xenforo-2-3-9-inc-xfmg-2-2-18-released-security-fix.235659/(vendor-advisory, patch)
  • https://www.vulncheck.com/advisories/xenforo-remote-code-execution-via-authenticated-admin(third-party-advisory)

Related News (1 articles)

Tier C
VulDB13h ago
CVE-2026-35056 | XenForo up to 2.2.17/2.3.8 code injection
→ No new info (linked only)
CVSS 3.18.8 NONE
CISA KEV✅ Yes
Actively exploited✅ Yes
Patch available
2.3.92.2.18
CWECWE-94
PublishedApr 1, 2026
Last enriched13h agov2
Trending Score84
Source articles1
Independent1
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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NONECVE-2026-35057EXP
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NONECVE-2026-35055EXP
XenForo Cross-Site Scripting via Lightbox in Posts
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NONECVE-2024-58342EXP
XenForo Open Redirect via getDynamicRedirect
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NONECVE-2025-71281EXP
XenForo Template Method Call Restriction Bypass
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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 1, 2026
Added to CISA KEV
Apr 1, 2026
Discovered by ZDM
Apr 1, 2026
Updated: affectedVersions, severity
Apr 1, 2026
Actively Exploited
Apr 1, 2026
Patch Available
Apr 1, 2026

Version History

v2
Last enriched 13h ago
v2Tier C13h ago

Updated affected versions to include 2.2.17 and 2.3.8, changed severity to CRITICAL, and noted that no exploit is available.

affectedVersionsseverity
via VulDB
v114h ago

Initial creation