{"id":"CVE-2026-16269","state":"PUBLISHED","title":"Newsletters < 4.16 - Unauthenticated API Authentication Bypass via Type Juggling","description":"The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to bypass the API authentication via type juggling and perform privileged actions such as modifying subscriber records and sending emails, when the optional API has been enabled.","publishedAt":"2026-08-08T06:00:10.712Z","updatedAt":"2026-08-11T19:33:17.675Z","severity":{"score":4.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Newsletters"],"affected":[{"vendor":"Unknown","product":"Newsletters","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.16","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/8b09afba-16a5-4d6c-9e85-84433a3c0d66/"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/16xxx/CVE-2026-16269.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-16269","state":"PUBLISHED","datePublished":"2026-08-08T06:00:10.712Z","dateUpdated":"2026-08-11T19:33:17.675Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-07-20T09:09:41.544Z"},"containers":{"cna":{"title":"Newsletters < 4.16 - Unauthenticated API Authentication Bypass via Type Juggling","descriptions":[{"lang":"en","value":"The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to bypass the API authentication via type juggling and perform privileged actions such as modifying subscriber records and sending emails, when the optional API has been enabled."}],"affected":[{"vendor":"Unknown","product":"Newsletters","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.16","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/8b09afba-16a5-4d6c-9e85-84433a3c0d66/","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":"2026-08-08T06:00:10.712Z"},"credits":[{"lang":"en","value":"Haitam Lazaar","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":4.8,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"LOW","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-11T19:33:14.929502Z","id":"CVE-2026-16269","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"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":"2026-08-11T19:33:17.675Z"}}]}}}