CVE-2026-57321 WordPress H5P plugin <= 1.17.7 - Arbitrary File Deletion vulnerability
Contributors can delete arbitrary files via path traversal in the H5P plugin, requiring an upgrade to secure the site.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57321?
CVE-2026-57321 is a high-severity path traversal vulnerability in icc0rz H5P, published on 26 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Contributor Arbitrary File Deletion in H5P <= 1.17.7 versions.
Weakness: CWE-22
Which versions are affected by CVE-2026-57321?
How do I fix CVE-2026-57321?
No fix has been published for CVE-2026-57321 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-57321 being exploited?
There is no known exploitation of CVE-2026-57321 in the wild and no public exploit code.
Sources
Also known as GHSA-6pq6-5jrw-hgmm.