{"schemaVersion":3,"id":"CVE-2026-12720","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"The Kirki  WordPress plugin before 6.0.13 does not restrict which classes may be instantiated when it deserialises data that unauthenticated users can store, leading to PHP Object Injection that is triggered when an administrator later reviews the stored data. With a suitable gadget chain present on the site (via another installed Kirki  WordPress plugin before 6.0.13, , or an outdated WordPress version), this could be leveraged to perform a variety of attacks, such as remote code execution.","dates":{"published":"2026-07-31T06:00:10.525Z","modified":"2026-07-31T16:53:55.130Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"wordfence","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"wordfence","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00525,"percentile":0.43327,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.14800000000000005,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00377},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00525,"percentile":0.43327}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00377,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00525,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00525,"percentile":0.43327}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_79CA2261F128C852","name":"Exploit Reference (wpscan.com)","source":"reference","url":"https://wpscan.com/vulnerability/22f5af1c-972e-4e31-9afa-bf50ac278c66/","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-502","name":"Deserialization of Untrusted Data","description":"The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/502.html"}],"affected":[{"vendor":"unknown","product":"kirki","name":"Kirki","label":"kirki","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 6.0.13","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.0.13","eol":null,"hubHref":"/vendor/unknown/kirki"},{"vendor":"wordpress","product":"kirki","name":"Kirki – Freeform Page Builder, Website Builder & Customizer","label":"kirki","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 6.0.13","noFixRecorded":false,"fixedIn":"6.0.13"}],"versionsText":"< 6.0.13","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://wpscan.com/vulnerability/22f5af1c-972e-4e31-9afa-bf50ac278c66/","label":"wpscan.com/vulnerability/22f5af1c-972e-4e31-9afa-bf50ac278c66/","hostname":"wpscan.com","tags":["Exploit","VDB Entry","Technical Description"]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d9c51f6b-e3ce-4408-8fcb-a56c3b1eee04","label":"www.wordfence.com/threat-intel/vulnerabilities/id/d9c51f6b-e3ce-4408-8fcb-a56c3b1eee04","hostname":"www.wordfence.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-07-31T06:00:10.525Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-31T16:53:55.130Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":43,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T18:51:09.721Z","stale":false,"partial":false}}