CVE-2026-114404

MEDIUM 6.1

PHPPresentation 1.2.0 XSS via Writer\HTML Text Runs, Hyperlinks and Descriptions

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

PHPOffice PHPPresentation 1.2.0 contains a cross-site scripting vulnerability in the HTML writer that allows attackers who supply presentation content to inject script into generated HTML. Attackers can craft a PPTX with malicious text runs, hyperlink relationship targets, or shape descr attributes that are emitted unescaped, executing script in viewers' browsers.

CWE	CWE-79
Vendor	phpoffice
Product	phppresentation
Published	Oct 21, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

PHPOffice / PHPPresentation

1.2.0 ≤ 1.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

hackmd.io: https://hackmd.io/@leediay/multiple_vulnerable_phppresentation github.com: https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Writer/HTML.php#L307-L330 github.com: https://github.com/PHPOffice/PHPPresentation vulncheck.com: https://www.vulncheck.com/advisories/phppresentation-1.2.0-xss-via-writer-html-text-runs-hyperlinks-and-descriptions

Credits

leediay153 from Viettel Post