CVE-2026-1804
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Stored XSS in WDES Responsive Popup WordPress Plugin Allows Script Injection

Publication date: 2026-02-11

Last updated on: 2026-02-11

Assigner: Wordfence

Description
The WDES Responsive Popup plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wdes-popup-title' shortcode in all versions up to, and including, 1.3.6 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
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Meta Information
Published
2026-02-11
Last Modified
2026-02-11
Generated
2026-06-16
AI Q&A
2026-02-11
EPSS Evaluated
2026-06-14
NVD
CVE-2026-1804
EUVD
EUVD-2026-5952
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wdes responsive_popup to 1.3.6 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

The WDES Responsive Popup plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in its 'wdes-popup-title' shortcode. This vulnerability exists in all versions up to and including 1.3.6 because the plugin does not properly sanitize or escape user-supplied input attributes. As a result, authenticated users with contributor-level access or higher can inject malicious scripts into pages. These scripts will execute whenever any user accesses the affected page.

Impact Analysis

This vulnerability allows attackers with contributor-level access or above to inject arbitrary web scripts into pages. These scripts can execute in the context of users visiting the infected pages, potentially leading to theft of user credentials, session hijacking, defacement, or distribution of malware. Because the attack is stored, the malicious code persists and affects all users who view the compromised content.

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