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TI-2026-78785 Aliases CVE-2026-114404GHSA-9prg-2pw9-j2rf

Cross-site scripting in PHPPresentation HTML writer

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

PHPOffice PHPPresentation 1.2.0 contains a cross-site scripting flaw in its HTML writer (CWE-79). The writer emits text runs, hyperlink targets and shape descriptions without escaping, so an attacker who supplies a crafted PPTX file can inject script into the generated HTML. The script runs in the browser of a user who views that HTML.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00258 17th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PHPOfficePHPPresentation1.2.0 – 1.2.0—No fix listedCNA
  • PHPPresentation VendorPHPOffice Affected 1.2.0 – 1.2.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for PHPPresentation.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-114404
  2. 2026-10-21 CISA SSVC decision points changed
  3. 2026-10-21 Alias added: GHSA-9prg-2pw9-j2rf

References

Advisory 1

Other 2

  • TI-2026-32885 PhpSpreadsheet: File::prohibitWrappers bypass CVSS 4.0CRITICAL 9.2
  • TI-2026-26406 PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFactory::load CVSS 4.0CRITICAL 9.2
  • TI-2026-79412 PhpSpreadsheet ODS reader exhausts CPU and memory via repeated rows CVSS 4.0HIGH 8.7
  • TI-2025-34182 PhpSpreadsheet vulnerable to SSRF when reading and displaying a processed HTML document in the browser CVSS 4.0HIGH 8.7
  • TI-2026-78784 Insecure deserialization in PHPOffice PHPPresentation allows code execution CVSS 4.0CRITICAL 9.2
  • TI-2024-37339 PhpSpreadsheet vulnerable to unauthorized reflected XSS in Currency.php file CVSS 4.0HIGH 8.3
See all 37 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences