EUVD-2026-37664Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Network-reachable endpoint requiring only subscriber credentials; integrity-only impact with no confidentiality or availability consequence from a missing authorization check.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Lifecycle Timeline
1DescriptionCVE.org
Subscriber Broken Access Control in MetForm Pro <= 3.9.1 versions.
AnalysisAI
Broken Access Control in MetForm Pro WordPress plugin (versions <= 3.9.1) permits subscriber-level authenticated users to perform actions restricted to higher-privileged roles, resulting in unauthorized low-level integrity modifications. The flaw stems from missing authorization checks (CWE-862) on one or more plugin endpoints or AJAX handlers accessible to the lowest standard WordPress role. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold an active subscriber-level (or higher) WordPress account on the target installation - this is the minimum authenticated role in WordPress (PR:L as reflected in the CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 score of 4.3 (Medium) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N accurately reflects the constrained impact profile: network exploitability at low complexity is partially offset by the mandatory subscriber-level account requirement (PR:L) and the limited integrity-only impact with no confidentiality or availability consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers a free subscriber account on a WordPress site running MetForm Pro <= 3.9.1 (or uses compromised credentials). The attacker then sends a crafted authenticated request - such as an AJAX call or REST API request - to a MetForm Pro endpoint that lacks proper capability checks, successfully invoking an action reserved for higher-privileged roles and modifying plugin-managed data or form configurations. … |
| Remediation | The primary remediation is to update MetForm Pro to a version released after 3.9.1 that addresses this broken access control flaw. … Detailed patch versions, workarounds, and compensating controls in full report. |
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More in Metform Pro
View allSame weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
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