CVE-2026-114403
HIGH
CVSS 8.1
Published: 2026-10-21
Modified: 2026-10-22
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Threat Intelligence Pending
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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.
Quick Facts
| CVE ID | CVE-2026-114403 |
| CVSS Score | 8.1 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published | 2026-10-21 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |