CVE Explorer

CVE-2026-11964

The User Registration & Membership WordPress plugin before 5.2.2 does not verify the authenticity of incoming payment-provider webhook notifications before acting on them, allowing unauthenticated attackers to forge a payment-approved event and activate a paid membership subscription without completing a real payment.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a55106d50ff644ce458bb47cf04bab64808561903ed0933135b35e02cc8440c2

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"User Registration & Membership","vendor":"Unknown","versions":[{"lessThan":"5.2.2","status":"affected","version":"0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3f75d4e4cd5f3c0316e08d793a92a550a81f516a75ad0c4a6090d4ec42d2a5e4 · sha256:bebd1add9b1334ad… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:3f75d4e4cd5f3c0316e08d793a92a550a81f516a75ad0c4a6090d4ec42d2a5e4 · sha256:bebd1add9b1334ad… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:3f75d4e4cd5f3c0316e08d793a92a550a81f516a75ad0c4a6090d4ec42d2a5e4 · sha256:bebd1add9b1334ad… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"tags":["exploit","vdb-entry","technical-description"],"url":"https://wpscan.com/vulnerability/faf55649-8f76-4abf-a6b9-0d0774e22d29/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3f75d4e4cd5f3c0316e08d793a92a550a81f516a75ad0c4a6090d4ec42d2a5e4 · sha256:bebd1add9b1334ad… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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