{"id":"CVE-2026-12583","state":"PUBLISHED","title":"Newsletters < 4.15 - Unauthenticated PHP Object Injection via Subscriber Custom Field","description":"The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated attackers to inject a PHP object and, via a property-oriented gadget chain bundled with the Newsletters WordPress plugin before 4.15, write arbitrary files and execute code on the server.","publishedAt":"2026-07-14T06:00:02.660Z","updatedAt":"2026-07-14T12:28:44.066Z","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 Newsletters"],"affected":[{"vendor":"Unknown","product":"Newsletters","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.15","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/e4c44105-f43d-4dff-8487-7d8ae2691c4e/"],"weaknesses":["CWE-502"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/12xxx/CVE-2026-12583.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12583","state":"PUBLISHED","datePublished":"2026-07-14T06:00:02.660Z","dateUpdated":"2026-07-14T12:28:44.066Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-06-18T07:06:08.362Z"},"containers":{"cna":{"title":"Newsletters < 4.15 - Unauthenticated PHP Object Injection via Subscriber Custom Field","descriptions":[{"lang":"en","value":"The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated attackers to inject a PHP object and, via a property-oriented gadget chain bundled with the Newsletters WordPress plugin before 4.15, write arbitrary files and execute code on the server."}],"affected":[{"vendor":"Unknown","product":"Newsletters","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.15","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/e4c44105-f43d-4dff-8487-7d8ae2691c4e/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-07-14T06:00:02.660Z"},"credits":[{"lang":"en","value":"Yaswanth Reddy Sunkara","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":"2026-07-14T12:28:38.246582Z","id":"CVE-2026-12583","options":[{"Exploitation":"poc"},{"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":"2026-07-14T12:28:44.066Z"}}]}}}