{"id":"CVE-2026-114403","published":"2026-10-21T13:18:31.753","lastModified":"2026-10-22T17:39:56.760","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.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-502"],"vendors":[],"products":[],"references":[{"url":"https://github.com/PHPOffice/PHPPresentation","tags":[]},{"url":"https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39","tags":[]},{"url":"https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109","tags":[]},{"url":"https://hackmd.io/@leediay/multiple_vulnerable_phppresentation","tags":[]},{"url":"https://www.vulncheck.com/advisories/phpoffice-phppresentation-through-1.2.0-deserialization-via-reader-serialized-load","tags":[]}],"exploitRefs":[{"url":"https://github.com/PHPOffice/PHPPresentation","tags":[]},{"url":"https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39","tags":[]},{"url":"https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109","tags":[]}],"hasPoc":true,"ai":null}