PHPOffice PHPPresentation through 1.2.0 Deserialization via Reader\Serialized::load
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.
CVE-2026-114403
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-114403
PHPPresentation
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/PHPOffice/PHPPresentation",
"vendor": "PHPOffice",
"product": "PHPPresentation",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.2.0"
}
],
"packageURL": "pkg:composer/phpoffice/phppresentation",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-114403
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #46101 · Revision 1
- Added to Heist Feed
- Publisher date