{"id":"CVE-2026-16747","state":"PUBLISHED","title":"Kirki < 6.2.1 - Unauthenticated Arbitrary Shortcode Execution via Form Email Actions","description":"The Kirki WordPress plugin before 6.2.1 does not properly authorise its front-end form submission REST routes and passes attacker-controlled input through shortcode execution, allowing unauthenticated users to run any shortcode registered on the site, which on a default install leads to disclosure of the site administrator's email address and an arbitrary-recipient mail relay from the victim's domain.","publishedAt":"2026-08-12T11:24:00.245Z","updatedAt":"2026-08-12T12:12:18.556Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"WPScan"},"assigner":"WPScan","products":["Unknown Kirki"],"affected":[{"vendor":"Unknown","product":"Kirki","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"6.2.1","versionType":"semver"}],"collectionURL":"https://wordpress.org/plugins"}],"references":["https://wpscan.com/vulnerability/4330c6e0-071e-49d6-b1ec-5c8633171bc4/"],"weaknesses":["CWE-74"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/16xxx/CVE-2026-16747.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-16747","state":"PUBLISHED","datePublished":"2026-08-12T11:24:00.245Z","dateUpdated":"2026-08-12T12:12:18.556Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-07-23T12:09:27.936Z"},"containers":{"cna":{"title":"Kirki < 6.2.1 - Unauthenticated Arbitrary Shortcode Execution via Form Email Actions","descriptions":[{"lang":"en","value":"The Kirki WordPress plugin before 6.2.1 does not properly authorise its front-end form submission REST routes and passes attacker-controlled input through shortcode execution, allowing unauthenticated users to run any shortcode registered on the site, which on a default install leads to disclosure of the site administrator's email address and an arbitrary-recipient mail relay from the victim's domain."}],"affected":[{"vendor":"Unknown","product":"Kirki","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"6.2.1","versionType":"semver"}],"collectionURL":"https://wordpress.org/plugins"}],"references":[{"url":"https://wpscan.com/vulnerability/4330c6e0-071e-49d6-b1ec-5c8633171bc4/","tags":["exploit","vdb-entry","technical-description"]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"description":"CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-08-12T11:24:00.245Z"},"credits":[{"lang":"en","value":"Jakub Herman","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":"2026-08-12T12:10:35.896283Z","id":"CVE-2026-16747","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-74","type":"CWE","lang":"en","description":"CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-12T12:12:18.556Z"}}]}}}