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CVE-2026-11961

The User Registration & Membership WordPress plugin before 5.2.3 does not validate that the membership tier submitted during public registration is one of the tiers allowed by the registration form before assigning that tier's associated user role, allowing unauthenticated users to register into an arbitrary published membership tier and obtain its role — up to administrator when such a tier exists.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4841a49675e973bbf361e7ee34a3df76d336a038c968145d8daa6d96deff60ba
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-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aa6c84f4060587f2d2c57bf24c1b28a81fdb55049ff673bd1e4b5d1a61d4f5f1 · sha256:ba57987adb90e2fc… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aa6c84f4060587f2d2c57bf24c1b28a81fdb55049ff673bd1e4b5d1a61d4f5f1 · sha256:ba57987adb90e2fc… · /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":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aa6c84f4060587f2d2c57bf24c1b28a81fdb55049ff673bd1e4b5d1a61d4f5f1 · sha256:ba57987adb90e2fc… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aa6c84f4060587f2d2c57bf24c1b28a81fdb55049ff673bd1e4b5d1a61d4f5f1 · sha256:ba57987adb90e2fc… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aa6c84f4060587f2d2c57bf24c1b28a81fdb55049ff673bd1e4b5d1a61d4f5f1 · sha256:ba57987adb90e2fc… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aa6c84f4060587f2d2c57bf24c1b28a81fdb55049ff673bd1e4b5d1a61d4f5f1 · sha256:ba57987adb90e2fc… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["exploit","vdb-entry","technical-description"],"url":"https://wpscan.com/vulnerability/2ffab574-8626-472e-b6e4-09bcbaa62349/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aa6c84f4060587f2d2c57bf24c1b28a81fdb55049ff673bd1e4b5d1a61d4f5f1 · sha256:ba57987adb90e2fc… · /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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