{"id":"CVE-2026-114403","title":"PHPOffice PHPPresentation through 1.2.0 Deserialization via Reader\\Serialized::load","summary":"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 PhpPres…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-502"],"vendor":"PHPOffice","product":"PHPPresentation","affected":["PHPPresentation <= 1.2.0"],"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T12:39:55.570Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-114403","references":[{"url":"https://hackmd.io/@leediay/multiple_vulnerable_phppresentation"},{"url":"https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109"},{"url":"https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39"},{"url":"https://github.com/PHPOffice/PHPPresentation"},{"url":"https://www.vulncheck.com/advisories/phpoffice-phppresentation-through-1.2.0-deserialization-via-reader-serialized-load","label":"VulnCheck Advisory: PHPOffice PHPPresentation through 1.2.0 Deserialization via Reader\\Serialized::load"}],"tags":["cve.org"],"ingestedAt":"2026-10-21T12:48:53.649Z","slug":"CVE-2026-114403","body":"## Overview\n\nPHPOffice 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.\n\n## Affected\n\n- `PHPPresentation <= 1.2.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}