CVE-2026-73318Public exploitNetwork attack vector

Forced policy re-agreement via unchecked controller permission

Published Sep 8, 2026 · Updated Sep 9, 2026

Incorrect authorization in XenForo before 2.3.13 allows remote authenticated users to submit restricted force-agreement forms. The force-agreement controller accepts ACP form access and submissions without enforcing the option permission declared by its navigation entry. Any ACP administrator can update the global policy timestamp, forcing all users to re-agree to the privacy policy or terms of service.

CVSS severity5.1
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in XenForo before 2.3.13 allows remote authenticated users to submit restricted force-agreement forms. The force-agreement controller accepts ACP form access and submissions without enforcing the option permission declared by its navigation entry. Any ACP administrator can update the global policy timestamp, forcing all users to re-agree to the privacy policy or terms of service.

The record

CVE
CVE-2026-73318
Published
Sep 8, 2026
Updated
Sep 9, 2026
Vendor
XenForo Ltd.
Product
XenForo
Classifications
CWE-863
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 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=0 <2.3.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

XenForo Ltd. · XenForoversion=0 <2.3.13

Published CVSS scores

5.1VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
3.8VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization

Public exploit references

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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