{"id":"CVE-2026-17520","state":"PUBLISHED","title":"Newsletters < 4.17 - Unauthenticated API Access via Predictable API Key","description":"The Newsletters WordPress plugin before 4.17 does not generate its API key using a sufficiently random source, deriving it from a publicly known value, allowing unauthenticated attackers to compute the key and perform privileged actions such as adding and deleting subscribers and sending emails, when the optional API has been enabled.","publishedAt":"2026-08-29T06:00:19.539Z","updatedAt":"2026-08-30T00:56:53.189Z","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":"4.17","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/5a719e6b-22e1-4950-bf17-cd92e2ea6685/"],"weaknesses":["CWE-326"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/17xxx/CVE-2026-17520.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-17520","state":"PUBLISHED","datePublished":"2026-08-29T06:00:19.539Z","dateUpdated":"2026-08-30T00:56:53.189Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-07-27T08:15:32.720Z"},"containers":{"cna":{"title":"Newsletters < 4.17 - Unauthenticated API Access via Predictable API Key","descriptions":[{"lang":"en","value":"The Newsletters WordPress plugin before 4.17 does not generate its API key using a sufficiently random source, deriving it from a publicly known value, allowing unauthenticated attackers to compute the key and perform privileged actions such as adding and deleting subscribers and sending emails, when the optional API has been enabled."}],"affected":[{"vendor":"Unknown","product":"Newsletters","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.17","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/5a719e6b-22e1-4950-bf17-cd92e2ea6685/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-326 Inadequate Encryption Strength","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-08-29T06:00:19.539Z"},"credits":[{"lang":"en","value":"Erwan LR (WPScan)","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":{"id":"CVE-2026-17520","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-08-30T00:53:45.635175Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-326","lang":"en","type":"CWE","description":"CWE-326 Inadequate Encryption Strength"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-30T00:56:53.189Z"}}]}}}