{"api_version":"1","generated_at":"2026-05-31T22:35:34+00:00","cve":"CVE-2023-40555","urls":{"html":"https://cve.report/CVE-2023-40555","api":"https://cve.report/api/cve/CVE-2023-40555.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-40555","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-40555"},"summary":{"title":"WordPress Flatsome Theme <= 3.17.5 is vulnerable to PHP Object Injection","description":"Deserialization of Untrusted Data vulnerability in UX-themes Flatsome | Multi-Purpose Responsive WooCommerce Theme.This issue affects Flatsome | Multi-Purpose Responsive WooCommerce Theme: from n/a through 3.17.5.","state":"PUBLISHED","assigner":"Patchstack","published_at":"2023-12-20 14:15:20","updated_at":"2026-04-28 19:21:11"},"problem_types":["CWE-502","CWE-502 CWE-502 Deserialization of Untrusted Data"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"audit@patchstack.com","type":"Secondary","score":"8.3","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","baseScore":8.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8.3","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","version":"3.1"}}],"references":[{"url":"https://patchstack.com/database/vulnerability/flatsome/wordpress-flatsome-theme-3-17-5-unauthenticated-php-object-injection-vulnerability?_s_id=cve","name":"https://patchstack.com/database/vulnerability/flatsome/wordpress-flatsome-theme-3-17-5-unauthenticated-php-object-injection-vulnerability?_s_id=cve","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-40555","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40555","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"UX-themes","product":"Flatsome | Multi-Purpose Responsive WooCommerce Theme","version":"affected n/a 3.17.5 custom","platforms":[]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Update to 3.17.6 or a higher version.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Rafie Muhammad (Patchstack)","lang":"en"}],"nvd_cpes":[{"cve_year":"2023","cve_id":"40555","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"uxthemes","cpe5":"flatsome","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"wordpress","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-02T18:38:51.110Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["vdb-entry","x_transferred"],"url":"https://patchstack.com/database/vulnerability/flatsome/wordpress-flatsome-theme-3-17-5-unauthenticated-php-object-injection-vulnerability?_s_id=cve"}],"title":"CVE Program Container"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Flatsome | Multi-Purpose Responsive WooCommerce Theme","vendor":"UX-themes","versions":[{"changes":[{"at":"3.17.6","status":"unaffected"}],"lessThanOrEqual":"3.17.5","status":"affected","version":"n/a","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","user":"00000000-0000-4000-9000-000000000000","value":"Rafie Muhammad (Patchstack)"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Deserialization of Untrusted Data vulnerability in UX-themes Flatsome | Multi-Purpose Responsive WooCommerce Theme.<p>This issue affects Flatsome | Multi-Purpose Responsive WooCommerce Theme: from n/a through 3.17.5.</p>"}],"value":"Deserialization of Untrusted Data vulnerability in UX-themes Flatsome | Multi-Purpose Responsive WooCommerce Theme.This issue affects Flatsome | Multi-Purpose Responsive WooCommerce Theme: from n/a through 3.17.5."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-28T16:08:36.673Z","orgId":"21595511-bba5-4825-b968-b78d1f9984a3","shortName":"Patchstack"},"references":[{"tags":["vdb-entry"],"url":"https://patchstack.com/database/vulnerability/flatsome/wordpress-flatsome-theme-3-17-5-unauthenticated-php-object-injection-vulnerability?_s_id=cve"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Update to 3.17.6 or a higher version."}],"value":"Update to 3.17.6 or a higher version."}],"source":{"discovery":"EXTERNAL"},"title":"WordPress Flatsome Theme <= 3.17.5 is vulnerable to PHP Object Injection","x_generator":{"engine":"Vulnogram 0.1.0-dev"}}},"cveMetadata":{"assignerOrgId":"21595511-bba5-4825-b968-b78d1f9984a3","assignerShortName":"Patchstack","cveId":"CVE-2023-40555","datePublished":"2023-12-20T13:45:19.115Z","dateReserved":"2023-08-16T11:15:05.044Z","dateUpdated":"2026-04-28T16:08:36.673Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2023-12-20 14:15:20","lastModifiedDate":"2026-04-28 19:21:11","problem_types":["CWE-502","CWE-502 CWE-502 Deserialization of Untrusted Data"],"metrics":{"cvssMetricV31":[{"source":"audit@patchstack.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","baseScore":8.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":3.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:uxthemes:flatsome:*:*:*:*:*:wordpress:*:*","versionEndExcluding":"3.17.6","matchCriteriaId":"EA2D33A6-D952-4D36-B141-C8D482D5E96C"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"40555","Ordinal":"1","Title":"WordPress Flatsome Theme <= 3.17.5 is vulnerable to PHP Object I","CVE":"CVE-2023-40555","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"40555","Ordinal":"1","NoteData":"Deserialization of Untrusted Data vulnerability in UX-themes Flatsome | Multi-Purpose Responsive WooCommerce Theme.This issue affects Flatsome | Multi-Purpose Responsive WooCommerce Theme: from n/a through 3.17.5.","Type":"Description","Title":"WordPress Flatsome Theme <= 3.17.5 is vulnerable to PHP Object I"}]}}}