CVE-2025-71282: XenForo Path Disclosure via open_basedir Exceptions

Severity: high (CVSS 7.5 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-209

Description

XenForo before 2.3.7 discloses filesystem paths through exception messages triggered by open_basedir restrictions. This allows an attacker to obtain information about the server's directory structure.

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-path-disclosure-via-open-basedir-exceptions
https://xenforo.com/community/threads/xenforo-2-3-7-released-includes-security-fixes.232121/

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