EUVD-2026-72755
GHSA-gw9m-qhxg-fr69
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Requires authenticated ACP admin (PR:H, AC:L); impact is limited to forcing user re-consent with no confidentiality exposure.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
XenForo before 2.3.13 contains a missing authorization vulnerability in the force-agreement controller that allows any ACP administrator to access and submit force-agreement forms regardless of their assigned permissions. Attackers can bypass the option permission declared in the navigation configuration to update the global policy last-updated timestamp, forcing all users to re-agree to the privacy policy or terms of service.
AnalysisAI
Missing authorization in XenForo before 2.3.13 permits any ACP administrator to access and submit the force-agreement controller irrespective of their assigned permission set, bypassing the option permission declared in the navigation configuration. An ACP admin with insufficient privileges can update the global policy last-updated timestamp, triggering a site-wide re-consent prompt that forces every registered user to re-accept the privacy policy or terms of service. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated ACP administrator account - any account with ACP access qualifies, even one whose role explicitly lacks the option permission for the force-agreement feature. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is constrained by the requirement for an existing, authenticated ACP administrator account (CVSS PR:H), which limits the attacker pool significantly - exploitation is not possible by unauthenticated users or standard forum members. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade XenForo to version 2.3.13 or later, which includes the server-side authorization fix for the force-agreement controller. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Analysis complete. The JSON synthesis is above. Two things worth flagging explicitly: 1. **Prompt injection ignored**
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Same weakness CWE-863 – Incorrect Authorization
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External POC / Exploit Code
Leaving vuln.today