CVE-2026-114403

HighCVSS 8.1/10Last modified Oct 28, 2026

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.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-502

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
PHPOffice	PHPPresentation	<= 1.2.0

References

Timeline

Published: Oct 21, 2026
Last modified: Oct 28, 2026
NVD status: Awaiting Analysis

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