{"id":"CVE-2026-91827","state":"PUBLISHED","title":"Ninja Forms 3.15.3 - Unauthenticated PHP Object Injection via CSV Export","description":"The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator later exports form submissions to CSV, allowing unauthenticated attackers to perform PHP Object Injection; if a suitable POP chain is present via another installed plugin or theme, this can lead to actions such as arbitrary file operations or remote code execution.","publishedAt":"2026-09-22T06:58:01.461Z","updatedAt":"2026-09-22T10:05:56.864Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"WPScan"},"assigner":"WPScan","products":["Unknown Ninja Forms"],"affected":[{"vendor":"Unknown","product":"Ninja Forms","defaultStatus":"unaffected","versions":[{"version":"3.15.3","status":"affected","lessThan":"3.15.4","versionType":"semver"}],"collectionURL":"https://wordpress.org/plugins"}],"references":["https://wpscan.com/vulnerability/7b279db2-92e0-4122-b5c6-aa12b7b01858/"],"weaknesses":["CWE-502"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/91xxx/CVE-2026-91827.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-91827","state":"PUBLISHED","datePublished":"2026-09-22T06:58:01.461Z","dateUpdated":"2026-09-22T10:05:56.864Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-15T08:07:50.100Z"},"containers":{"cna":{"title":"Ninja Forms 3.15.3 - Unauthenticated PHP Object Injection via CSV Export","descriptions":[{"lang":"en","value":"The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator later exports form submissions to CSV, allowing unauthenticated attackers to perform PHP Object Injection; if a suitable POP chain is present via another installed plugin or theme, this can lead to actions such as arbitrary file operations or remote code execution."}],"affected":[{"vendor":"Unknown","product":"Ninja Forms","defaultStatus":"unaffected","versions":[{"version":"3.15.3","status":"affected","lessThan":"3.15.4","versionType":"semver"}],"collectionURL":"https://wordpress.org/plugins"}],"references":[{"url":"https://wpscan.com/vulnerability/7b279db2-92e0-4122-b5c6-aa12b7b01858/","tags":["exploit","vdb-entry","technical-description"]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-09-22T06:58:01.461Z"},"credits":[{"lang":"en","value":"Karthik Ramakrishnan","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-22T10:05:51.795663Z","id":"CVE-2026-91827","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","type":"CWE","lang":"en","description":"CWE-502 Deserialization of Untrusted Data"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-22T10:05:56.864Z"}}]}}}