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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Preservation", "vendor": "ThemeREX", "versions": [{"lessThanOrEqual": "1.15", "status": "affected", "version": "n/a", "versionType": "custom"}]}], "source": "audit@patchstack.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Unauthenticated PHP Object Injection in Preservation <= 1.15 versions."}], "id": "CVE-2026-54859", "lastModified": "2026-10-29T16:20:19.663", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "audit@patchstack.com", "type": "Secondary"}]}, "published": "2026-10-29T16:18:10.097", "references": [{"source": "audit@patchstack.com", "url": "https://patchstack.com/database/wordpress/theme/preservation/vulnerability/wordpress-preservation-theme-1-15-php-object-injection-vulnerability?_s_id=cve"}], "sourceIdentifier": "audit@patchstack.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "audit@patchstack.com", "type": "Primary"}]}

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