CVE-2026-89330
EmbedPress <= 4.6.5 - Reflected Cross-Site Scripting via 'hash' and 'unique' Parameters
- State
- Published
- Severity
- 6.1 Medium
- Published
- Sep 18, 2026
- Updated
- Sep 18, 2026
- Reserved
- Sep 11, 2026
Description
The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'unique' parameter in all versions up to, and including, 4.6.5 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. This is a regression: the esc_url() wrapper that remediated the equivalent CVE-2023-5749 in version 3.9.2 was removed in version 4.3.0 during a refactor that introduced the 'unique' parameter.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documentswpdevteam |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d8b0f381-c07c-4560-bb5c-3a6aee442390?source=cve
- https://plugins.trac.wordpress.org/browser/embedpress/tags/4.6.5/EmbedPress/Includes/Classes/Feature_Enhancer.php#L1737
- https://plugins.trac.wordpress.org/browser/embedpress/tags/4.6.5/EmbedPress/Includes/Classes/Feature_Enhancer.php#L1642
- https://plugins.trac.wordpress.org/browser/embedpress/tags/4.6.5/EmbedPress/Includes/Classes/Feature_Enhancer.php#L1745
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3696560%40embedpress&new=3696560%40embedpress
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