{"id":"CVE-2026-16536","state":"PUBLISHED","title":"Simple Google Calendar Outlook Events Widget < 3.1.0 - Unauthenticated SSRF via calendar_id","description":"The Simple Google Calendar Outlook Events Widget WordPress plugin before 3.1.0 does not validate a user-supplied URL before performing a server-side request, allowing unauthenticated attackers to perform Server-Side Request Forgery attacks and, in some cases, read the response of the internal request.","publishedAt":"2026-08-04T06:00:08.977Z","updatedAt":"2026-08-04T14:37:05.229Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Simple Google Calendar Outlook Events Widget"],"affected":[{"vendor":"Unknown","product":"Simple Google Calendar Outlook Events Widget","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.1.0","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/effa5549-ecfa-45ba-9044-7345d674c2ca/"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/16xxx/CVE-2026-16536.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-16536","state":"PUBLISHED","datePublished":"2026-08-04T06:00:08.977Z","dateUpdated":"2026-08-04T14:37:05.229Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-07-22T09:33:33.781Z"},"containers":{"cna":{"title":"Simple Google Calendar Outlook Events Widget < 3.1.0 - Unauthenticated SSRF via calendar_id","descriptions":[{"lang":"en","value":"The Simple Google Calendar Outlook Events Widget WordPress plugin before 3.1.0 does not validate a user-supplied URL before performing a server-side request, allowing unauthenticated attackers to perform Server-Side Request Forgery attacks and, in some cases, read the response of the internal request."}],"affected":[{"vendor":"Unknown","product":"Simple Google Calendar Outlook Events Widget","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.1.0","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/effa5549-ecfa-45ba-9044-7345d674c2ca/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-918 Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-08-04T06:00:08.977Z"},"credits":[{"lang":"en","value":"Pablo González Pérez","type":"finder"},{"lang":"en","value":"Francisco José Ramírez Vicente and Iñigo Sánchez Enciso","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":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-04T14:36:49.777490Z","id":"CVE-2026-16536","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","type":"CWE","lang":"en","description":"CWE-918 Server-Side Request Forgery (SSRF)"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-04T14:37:05.229Z"}}]}}}