EUVD-2026-41255
GHSA-hhpx-jgxv-4x4j
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Open self-registration removes any privilege barrier (PR:N); network-accessible web plugin with no complexity or user interaction; low C and I for content access and subscription state manipulation only.
Primary rating from Vendor (wpscan).
CVSS VectorVendor: wpscan
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
5DescriptionCVE.org
The User Registration & Membership WordPress plugin before 5.2.0 does not enforce payment completion before activating a paid membership subscription, allowing unauthenticated users (after self-registering an account through the open registration flow) to obtain an active subscription on any paid plan without paying and access the gated content.
AnalysisAI
Payment enforcement bypass in the User Registration & Membership WordPress plugin before 5.2.0 allows any visitor to self-register a free account and then activate a paid membership subscription without completing payment, gaining unauthorized access to gated premium content. The flaw is a business logic failure: the plugin activates the paid plan upon subscription initiation rather than upon confirmed payment receipt. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The plugin must be installed and active on a WordPress site with at least one paid membership plan configured, and the site must have open user registration enabled (the default WordPress setting). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N) accurately reflects the exploitability profile: network-reachable, zero complexity, no prior authentication, and no user interaction required beyond a self-registration step that is intentionally open. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker visits a WordPress site running the vulnerable plugin, creates a free account through the open public registration form, and then navigates to a paid membership plan sign-up flow. By initiating the subscription without completing the payment gateway step - or by manipulating the request sequence - the attacker receives an active paid membership status and can immediately access gated premium content such as courses, downloads, or restricted articles. … |
| Remediation | Update the User Registration & Membership plugin to version 5.2.0 or later immediately; this is the vendor-confirmed patched release per the WPScan advisory (https://wpscan.com/vulnerability/49f4c59e-5931-405d-8518-244531bbc889/) and NVD entry (https://nvd.nist.gov/vuln/detail/CVE-2026-11965). … Detailed patch versions, workarounds, and compensating controls in full report. |
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