CVE-2026-89330: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in wpdevteam EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents
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.
AI Analysis
Technical Summary
The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents WordPress plugin is affected by a reflected cross-site scripting vulnerability (CWE-79) in the 'unique' parameter. All versions up to and including 4.6.5 are vulnerable due to the removal of the esc_url() wrapper that previously mitigated a similar issue (CVE-2023-5749). This regression allows unauthenticated attackers to inject arbitrary web scripts that execute when users are tricked into clicking malicious links.
Potential Impact
Successful exploitation allows an unauthenticated attacker to perform reflected XSS attacks, potentially leading to the execution of arbitrary scripts in the context of the victim's browser. This can result in limited confidentiality and integrity impacts, such as theft of user session data or manipulation of displayed content. There is no indication of availability impact or known active exploitation in the wild.
Mitigation Recommendations
No official patch or fix is currently confirmed for this vulnerability. Users should monitor the vendor's advisories for updates. Until a fix is available, avoid using the 'unique' parameter in URLs or restrict access to affected plugin functionality. Consider applying web application firewall (WAF) rules to detect and block suspicious input targeting the 'unique' parameter.
CVE-2026-89330: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in wpdevteam EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents
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.
CVSS v3.1
Score 6.1medium
Affected software
wpdevteam
EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents WordPress plugin is affected by a reflected cross-site scripting vulnerability (CWE-79) in the 'unique' parameter. All versions up to and including 4.6.5 are vulnerable due to the removal of the esc_url() wrapper that previously mitigated a similar issue (CVE-2023-5749). This regression allows unauthenticated attackers to inject arbitrary web scripts that execute when users are tricked into clicking malicious links.
Potential Impact
Successful exploitation allows an unauthenticated attacker to perform reflected XSS attacks, potentially leading to the execution of arbitrary scripts in the context of the victim's browser. This can result in limited confidentiality and integrity impacts, such as theft of user session data or manipulation of displayed content. There is no indication of availability impact or known active exploitation in the wild.
Mitigation Recommendations
No official patch or fix is currently confirmed for this vulnerability. Users should monitor the vendor's advisories for updates. Until a fix is available, avoid using the 'unique' parameter in URLs or restrict access to affected plugin functionality. Consider applying web application firewall (WAF) rules to detect and block suspicious input targeting the 'unique' parameter.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-09-11T15:13:46.881Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aace1f555bf5e2cf5a3c68d
Added to database: 09/18/2026, 07:02:13 UTC
Last enriched: 09/18/2026, 07:16:56 UTC
Last updated: 09/18/2026, 22:12:52 UTC
Views: 12
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