{"id":"CVE-2026-114403","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-114403","summary":"PHPOffice PHPPresentation through 1.2.0 Deserialization via Reader\\Serialized::load","details":"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.","published":"2026-10-21T12:39:55.570Z","modified":"2026-10-24T02:49:31.156027470Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114403.json"},{"type":"ADVISORY","url":"https://hackmd.io/@leediay/multiple_vulnerable_phppresentation"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114403"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/phpoffice-phppresentation-through-1.2.0-deserialization-via-reader-serialized-load"},{"type":"PACKAGE","url":"https://github.com/PHPOffice/PHPPresentation"},{"type":"ARTICLE","url":"https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39"},{"type":"ARTICLE","url":"https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T02:49:31.156027470Z"}}