CVE-2026-57321
Deferred Deferred - Pending Action
Arbitrary File Deletion in H5P <= 1.17.7

Publication date: 2026-06-26

Last updated on: 2026-06-26

Assigner: Patchstack

Description
Contributor Arbitrary File Deletion in H5P <= 1.17.7 versions.
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Meta Information
Published
2026-06-26
Last Modified
2026-06-26
Generated
2026-06-26
AI Q&A
2026-06-26
EPSS Evaluated
N/A
NVD
CVE-2026-57321
EUVD
EUVD-2026-39733
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
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Executive Summary

CVE-2026-57321 is an Arbitrary File Deletion vulnerability found in the WordPress H5P Plugin versions 1.17.7 and earlier.

This flaw allows attackers to delete files from a website by exploiting broken access control mechanisms within the plugin.

If exploited, it can cause the website to malfunction or break, especially if critical files are removed.

Impact Analysis

An attacker exploiting this vulnerability can delete files on your website, which may lead to site malfunction or complete breakdown.

This can disrupt your website's availability and functionality, potentially causing downtime and loss of service.

Since the vulnerability is expected to be targeted in mass-exploit campaigns, websites of all sizes and popularity are at risk.

Detection Guidance

There is no specific information provided about detection methods or commands to identify this vulnerability on your network or system.

Mitigation Strategies

To mitigate this vulnerability, you should immediately update the WordPress H5P Plugin to version 1.17.8 or later, which contains the patch for this arbitrary file deletion issue.

Until you can update, you may apply the mitigation rule provided by Patchstack to block attacks exploiting this vulnerability.

If you need assistance, contact your hosting provider or developer to help with the update and mitigation.

Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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