PLUGIN SECURITY
Known vulnerabilities, PHP compatibility and safer alternatives for the H5p WordPress plugin — checked against WP Clinic's local security database.
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5 known CVEs on file for H5p. Reported between 2024 and 2026.
| CVE | Vulnerability | Type | Severity | Affected | Fixed in | Published | Status |
|---|---|---|---|---|---|---|---|
| CVE-2026-57321 | Interactive Content – H5P [h5p] < 1.17.8 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | High 7.1 | < 1.17.8 | 1.17.8 | 2026-06-26 | — |
| CVE-2026-56006 | Interactive Content – H5P [h5p] < 1.17.7 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | High 7.1 | < 1.17.7 | 1.17.7 | 2026-06-18 | — |
| CVE-2025-68505 | Interactive Content – H5P [h5p] < 1.16.2 | Missing Authorization | Medium 5.3 | < 1.16.2 | 1.16.2 | 2025-12-24 | — |
| CVE-2025-62951 | Interactive Content – H5P [h5p] < 1.16.1 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | Medium 6.5 | < 1.16.1 | 1.16.1 | 2025-10-13 | — |
| CVE-2024-3111 | Interactive Content – H5P [h5p] < 1.15.8 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | Medium 5.4 | < 1.15.8 | 1.15.8 | 2024-06-06 | — |
The Interactive Content – H5P plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in all versions up to, and including, 1.17.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).
Source: Wordfence
The Interactive Content – H5P plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 1.17.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Source: Wordfence
The Interactive Content – H5P plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 1.16.1. This makes it possible for unauthenticated attackers to perform an unauthorized action.
Source: Wordfence
The Interactive Content – H5P plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.16.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: Wordfence
The Interactive Content – H5P plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 1.15.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.
Source: Wordfence
Update this plugin to the latest release from wordpress.org — each CVE above lists the exact release that fixed it ("Fixed in") when one is on file.
This is the plugin's full known vulnerability history, not a scan of any specific installation — run a free scan of your own site to check your exact installed version.
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