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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| PHPOffice | PHPPresentation | ≤ 1.2.0 | — |
References
- https://hackmd.io/@leediay/multiple_vulnerable_phppresentation third-party-advisory
- https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109 technical-description
- https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39 technical-description
- https://github.com/PHPOffice/PHPPresentation product
- VulnCheck Advisory: PHPOffice PHPPresentation through 1.2.0 Deserialization via Reader\Serialized::load third-party-advisory