NVD HIGH: CVE-2026-114403 — PHPOffice PHPPresentation through 1.2.0 contains an insecure deserialization vul...

Wednesday, October 21, 2026 at 01:18 PM UTC·Source: NIST NVD

Updated: Tuesday, October 27, 2026 at 11:00 PM UTC

Executive 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 PhpPresentation.xml that IOFactory::load passes to unserialize(), enabling gadget-chain code execution, file writes, or denial of service.

Analysis

Indicators of Compromise (1)

CVE (1)

CVE-2026-114403

NVD MITRE CVE

Source Attribution

Originally published by NIST NVD on Oct 21, 2026. Verified by: NIST.

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