Method Call Restriction Bypass in XenForo by XenForo Limited
CVE-2025-71281

8.7HIGH

Key Information:

Vendor
CVE Published:
1 April 2026

What is CVE-2025-71281?

XenForo versions prior to 2.3.7 exhibit a vulnerability where the method restrictions within templates are not adequately enforced. Instead of implementing a stringent first-word match for callable methods, the system uses a loose prefix match. This flaw may permit unauthorized invocations of methods through callbacks and variable method calls within templates, creating a potential security risk for users and their data.

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Affected Version(s)

XenForo 2.3.0 < 2.3.7

References

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Cyanide
.