CVE-2025-71282Network attack vector

Filesystem path disclosure via open_basedir exceptions

Published Apr 1, 2026 · Updated Apr 1, 2026

Information disclosure in XenForo 2.3.0 through 2.3.6 allows remote attackers to read server filesystem paths via exception messages. When PHP open_basedir restrictions reject a filesystem operation, XenForo exposes the resulting exception text instead of suppressing path details. No authentication or user interaction is required, and the disclosed directory structure reveals deployment details without altering data or service availability.

CVSS severity8.7
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in XenForo 2.3.0 through 2.3.6 allows remote attackers to read server filesystem paths via exception messages. When PHP open_basedir restrictions reject a filesystem operation, XenForo exposes the resulting exception text instead of suppressing path details. No authentication or user interaction is required, and the disclosed directory structure reveals deployment details without altering data or service availability.

The record

CVE
CVE-2025-71282
Published
Apr 1, 2026
Updated
Apr 1, 2026
Vendor
XenForo Ltd.
Product
XenForo
Classifications
CWE-209, T1592.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.3.0 <2.3.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

XenForo Ltd. · XenForoversion=2.3.0 <2.3.7

Published CVSS scores

7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
T1592.004Gather Victim Host Information: Client Configurations

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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