{"id":"CVE-2026-114403","revision":"1f7c5c2f77c5437894c93b571e62875f","records":[{"revision":"1f7c5c2f77c5437894c93b571e62875f","observedAt":"2026-10-28T17:46:48.824+00:00","statement":{"source":"cve-program","id":"CVE-2026-114403","aliases":[],"title":"PHPOffice PHPPresentation through 1.2.0 Deserialization via Reader\\Serialized::load","description":"PHPOffice PHPPresentation through 1.2.0 contains an insecure deserialization vulnerability that allows attackers to instantiate arbitrary PHP objects by supplying a crafted presentation file. Attackers can upload a ZIP containing PhpPresentation.xml that IOFactory::load passes to unserialize(), enabling gadget-chain code execution, file writes, or denial of service.","state":0,"publishedAt":"2026-10-21T12:39:55.57+00:00","modifiedAt":"2026-10-28T16:31:14.653+00:00","affected":[{"ecosystem":"Vendor product","name":"PHPPresentation","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"PHPOffice\",\n                    \"product\": \"PHPPresentation\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"1.2.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:composer/phpoffice/phppresentation\",\n                    \"repo\": \"https://github.com/PHPOffice/PHPPresentation\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.2,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1,"severity":"HIGH"}],"references":["https://hackmd.io/@leediay/multiple_vulnerable_phppresentation","https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109","https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39","https://github.com/PHPOffice/PHPPresentation","https://www.vulncheck.com/advisories/phpoffice-phppresentation-through-1.2.0-deserialization-via-reader-serialized-load"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-114403","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-114403","identifiers":["CVE-2026-114403"]},"retained":false,"historicalAffected":[]}],"coverage":[]}