{"id":"CVE-2026-12281","state":"PUBLISHED","title":"Shibboleth < 2.5.4 - Unauthenticated Administrator Account Creation via Identity Header Spoofing","description":"The Shibboleth WordPress plugin before 2.5.4 does not fail closed when its HTTP header identity mode is enabled without an anti-spoofing key, treating any request that carries identity headers as an authenticated session without verifying them. On a deployment where untrusted client headers reach the application, an unauthenticated attacker can log in with forged identity headers and, when automatic account creation and the default administrator role mapping are enabled, create and sign in as a new administrator. Exploitation requires the non-default HTTP header attribute mode, an empty or absent spoof key, automatic account creation enabled, and a deployment that does not strip untrusted client headers before they reach the application.","publishedAt":"2026-07-15T06:00:02.460Z","updatedAt":"2026-07-15T10:30:29.732Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Shibboleth"],"affected":[{"vendor":"Unknown","product":"Shibboleth","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.5.4","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/8474eda4-6385-447a-9139-f57c049d1713/"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/12xxx/CVE-2026-12281.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12281","state":"PUBLISHED","datePublished":"2026-07-15T06:00:02.460Z","dateUpdated":"2026-07-15T10:30:29.732Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-06-15T12:45:00.391Z"},"containers":{"cna":{"title":"Shibboleth < 2.5.4 - Unauthenticated Administrator Account Creation via Identity Header Spoofing","descriptions":[{"lang":"en","value":"The Shibboleth WordPress plugin before 2.5.4 does not fail closed when its HTTP header identity mode is enabled without an anti-spoofing key, treating any request that carries identity headers as an authenticated session without verifying them. On a deployment where untrusted client headers reach the application, an unauthenticated attacker can log in with forged identity headers and, when automatic account creation and the default administrator role mapping are enabled, create and sign in as a new administrator. Exploitation requires the non-default HTTP header attribute mode, an empty or absent spoof key, automatic account creation enabled, and a deployment that does not strip untrusted client headers before they reach the application."}],"affected":[{"vendor":"Unknown","product":"Shibboleth","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.5.4","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/8474eda4-6385-447a-9139-f57c049d1713/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-07-15T06:00:02.460Z"},"credits":[{"lang":"en","value":"Khaled Alenazi (Nxploited)","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.1,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-15T10:30:20.393062Z","id":"CVE-2026-12281","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","type":"CWE","lang":"en","description":"CWE-287 Improper Authentication"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-15T10:30:29.732Z"}}]}}}