CVE-2026-56006 PUBLISHED

WordPress H5P plugin <= 1.17.6 - Reflected Cross Site Scripting (XSS) vulnerability

Assigner: Patchstack
Reserved: 18.06.2026 Published: 25.06.2026 Updated: 25.06.2026

Unauthenticated Cross Site Scripting (XSS) in H5P <= 1.17.6 versions.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS Score: 7.1

Product Status

Vendor H5P
Product H5P
Versions Default: unaffected
  • affected from n/a to 1.17.6 (incl.)

Solutions

Update the WordPress H5P Plugin to the latest available version (at least 1.17.7).

Credits

  • Koutrouss Naddara | Patchstack Bug Bounty Program finder

References

Problem Types

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE

Impacts

  • CAPEC-591 Reflected XSS