{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-105436", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "state": "PUBLISHED", "assignerShortName": "Patchstack", "dateReserved": "2026-10-05T13:00:43.469Z", "datePublished": "2026-10-08T17:00:12.300Z", "dateUpdated": "2026-10-08T17:00:12.300Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-10-08T17:00:12.300Z"}, "title": "WordPress MainWP Child plugin <= 6.2.1 - Deserialization of untrusted data vulnerability", "datePublic": "2026-10-06T16:33:55.000Z", "descriptions": [{"lang": "en", "value": "Deserialization of Untrusted Data vulnerability in MainWP MainWP Child mainwp-child allows Object Injection.This issue affects MainWP Child: from n/a through 6.2.1.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Deserialization of Untrusted Data vulnerability in MainWP MainWP Child mainwp-child allows Object Injection.<p>This issue affects MainWP Child: from n/a through 6.2.1.</p>"}]}], "affected": [{"vendor": "MainWP", "product": "MainWP Child", "packageName": "mainwp-child", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "versions": [{"version": "0", "versionType": "custom", "status": "affected", "lessThanOrEqual": "6.2.1", "changes": [{"at": "6.2.2", "status": "unaffected"}]}]}], "references": [{"url": "https://patchstack.com/database/wordpress/plugin/mainwp-child/vulnerability/wordpress-mainwp-child-plugin-6-2-1-deserialization-of-untrusted-data-vulnerability?_s_id=cve", "tags": ["vdb-entry"]}], "credits": [{"lang": "en", "value": "Rafie Muhammad | Patchstack Bug Bounty Program", "type": "finder"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-502", "description": "Deserialization of Untrusted Data", "lang": "en", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-586", "descriptions": [{"lang": "en", "value": "Object Injection"}]}], "solutions": [{"lang": "en", "value": "Update the WordPress MainWP Child plugin to the latest available version (at least 6.2.2).", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Update the WordPress MainWP Child plugin to the latest available version (at least 6.2.2)."}]}], "tags": ["x_open-source"]}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "packageName": "mainwp-child", "product": "MainWP Child", "vendor": "MainWP", "versions": [{"changes": [{"at": "6.2.2", "status": "unaffected"}], "lessThanOrEqual": "6.2.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Deserialization of Untrusted Data vulnerability in MainWP MainWP Child mainwp-child allows Object Injection.This issue affects MainWP Child: from n/a through 6.2.1."}], "id": "CVE-2026-105436", "lastModified": "2026-10-08T17:24:11.230", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-10-08T17:17:12.363", "references": [{"source": "[email protected]", "url": "https://patchstack.com/database/wordpress/plugin/mainwp-child/vulnerability/wordpress-mainwp-child-plugin-6-2-1-deserialization-of-untrusted-data-vulnerability?_s_id=cve"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,6.2.1]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MainWP Child", "source": "cna", "vendor": "MainWP"}, "product": "mainwp_child", "vendor": "mainwp"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,6.2.1]"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}]}, "product": "mainwp_child", "vendor": "wordpress-extensions"}], "created": "2026-10-08T19:30:18.137924+00:00", "updated": "2026-10-09T08:04:22.193552+00:00", "vendors": ["mainwp", "mainwp$PRODUCT$mainwp_child", "wordpress-extensions", "wordpress-extensions$PRODUCT$mainwp_child"]}