CVE-2026-114403
PHPOffice PHPPresentation through 1.2.0 Deserialization via Reader\Serialized::load
PHPOffice PHPPresentation
CVSS
9.2CriticalExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.48%Chance of exploitation activity in the next 30 days, higher than 40% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- PHPPresentationaffected: all versions through 1.2.0CVE List
References 5
- hackmd.io/@leediay/multiple_vulnerable_phppresentationAdvisoryvia CVE List
- vulncheck.com/advisories/phpoffice-phppresentation-through-1.2.0-deserialization-via-reader-serialized-loadAdvisoryvia CVE List
- github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109Referencevia CVE List
- github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39Referencevia CVE List
- github.com/PHPOffice/PHPPresentationReferencevia CVE List