What’s Vulnerable › Vulnerabilities

CVE-2025-71281: XenForo Template Method Call Restriction Bypass

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-01 · updated 2026-06-17
• Weakness: CWE-94

Description

XenForo before 2.3.7 does not properly restrict methods callable from within templates. A loose prefix match was used instead of a stricter first-word match for methods accessible through callbacks and variable method calls in templates, potentially allowing unauthorized method invocations.

Affected products

• XenForo: before 2.3.7 — fixed in 2.3.7

How to fix

Upgrade to a fixed version: XenForo 2.3.7. Check the vendor advisory for mitigations.

References

• https://www.vulncheck.com/advisories/xenforo-template-method-call-restriction-bypass
• https://xenforo.com/community/threads/xenforo-2-3-7-released-includes-security-fixes.232121/

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