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CVE-2026-11966

The User Registration & Membership WordPress plugin before 5.2.3 does not perform a capability check for unauthenticated callers on one of its membership payment actions and acts on a caller-supplied user identifier, allowing unauthenticated attackers to delete recently-registered, payment-pending user accounts.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8ef9eb9194f304f4cd8908352db76a75e48ba4ac03244523b09907bc31d37182
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-639","description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6ef33a49edc09df9d195d150cc2516f9f72816e8326cc0344b04dbfaa138c4bf · sha256:dcec8c5f413d3816… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6ef33a49edc09df9d195d150cc2516f9f72816e8326cc0344b04dbfaa138c4bf · sha256:dcec8c5f413d3816… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"User Registration & Membership","vendor":"Unknown","versions":[{"lessThan":"5.2.3","status":"affected","version":"4.2.3","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6ef33a49edc09df9d195d150cc2516f9f72816e8326cc0344b04dbfaa138c4bf · sha256:dcec8c5f413d3816… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6ef33a49edc09df9d195d150cc2516f9f72816e8326cc0344b04dbfaa138c4bf · sha256:dcec8c5f413d3816… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-639","description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6ef33a49edc09df9d195d150cc2516f9f72816e8326cc0344b04dbfaa138c4bf · sha256:dcec8c5f413d3816… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6ef33a49edc09df9d195d150cc2516f9f72816e8326cc0344b04dbfaa138c4bf · sha256:dcec8c5f413d3816… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["exploit","vdb-entry","technical-description"],"url":"https://wpscan.com/vulnerability/8e3be064-b3b7-4d68-960b-8c850c3e6f77/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6ef33a49edc09df9d195d150cc2516f9f72816e8326cc0344b04dbfaa138c4bf · sha256:dcec8c5f413d3816… · /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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