Quick answers
- Is CVE-2026-56006 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-56006 being exploited in the wild.
- How severe is CVE-2026-56006?
- High severity, with a CVSS score of 7.1, published 25 June 2026.
- Which products and versions are affected?
- H5P <= 1.17.6.
- Is there a fix for CVE-2026-56006?
- A patch was published on 2026-06-25: Patch confirmed available in version 1.17.7 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-56006 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-56006?
- Check whether you run H5P at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The H5P plugin for WordPress (versions <= 1.17.6) contains a reflected Cross-Site Scripting (XSS) vulnerability due to improper neutralization of user-supplied input during web page generation (CWE-79). An unauthenticated remote attacker can exploit this by tricking a user into clicking a malicious link or visiting a specially crafted page. Successful exploitation allows the execution of arbitrary JavaScript in the context of the victim's browser session, which can lead to session hijacking or unauthorized actions on behalf of the user. The issue is resolved in version 1.17.7.
Affected products
- H5P H5P <= 1.17.6
Timeline
- 2026-06-05: other: Vulnerability reported by researcher Koutrouss Naddara
- 2026-06-18: advisory: Initial advisory published by Patchstack
- 2026-06-25: disclosed: CVE published to NVD
- 2026-06-25: patched: Patch confirmed available in version 1.17.7