CVE-2026-54859

{"id": "CVE-2026-54859", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54859", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-29T19:40:16.181269Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "audit@patchstack.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "affected": [{"source": "audit@patchstack.com", "affectedData": [{"vendor": "ThemeREX", "product": "Preservation", "versions": [{"status": "affected", "version": "n/a", "versionType": "custom", "lessThanOrEqual": "1.15"}], "defaultStatus": "unaffected"}]}], "published": "2026-10-29T16:18:10.097", "references": [{"url": "https://patchstack.com/database/wordpress/theme/preservation/vulnerability/wordpress-preservation-theme-1-15-php-object-injection-vulnerability?_s_id=cve", "source": "audit@patchstack.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "audit@patchstack.com", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "Unauthenticated PHP Object Injection in Preservation <= 1.15 versions."}], "lastModified": "2026-10-29T20:17:31.677", "sourceIdentifier": "audit@patchstack.com"}