CVE-2026-3996
Received Received - Intake

Stored XSS in WP Games Embed Plugin via Shortcode Attributes

Publication date: 2026-03-21

Last updated on: 2026-03-21

Assigner: Wordfence

Description
The WP Games Embed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [game] shortcode in all versions up to and including 0.1beta. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'width', 'height', 'src', 'title', 'description', 'game_url', 'main', and 'thumb', which are all directly concatenated into HTML output without any 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.

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Meta Information

Published
2026-03-21
Last Modified
2026-03-21
Generated
2026-07-06
AI Q&A
2026-03-21
EPSS Evaluated
2026-07-05
NVD
CVE-2026-3996
EUVD
EUVD-2026-14190

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
wp_games_embed wp_games_embed to 0.1beta (inc)
wordfence wp_games_embed to 0.1beta (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.

Attack-Flow Graph

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Impact Analysis

This vulnerability can allow attackers with Contributor-level access or higher to inject arbitrary malicious scripts into web pages. When other users visit these pages, the injected scripts execute in their browsers, potentially leading to theft of sensitive information, session hijacking, defacement, or other malicious actions. Because the vulnerability is stored, the malicious code persists on the site and affects all users who access the compromised pages.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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Executive Summary

The WP Games Embed plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in all versions up to and including 0.1beta. This vulnerability arises because the plugin does not properly sanitize or escape user-supplied shortcode attributes such as 'width', 'height', 'src', 'title', 'description', 'game_url', 'main', and 'thumb'. These attributes are directly inserted into the HTML output without escaping, allowing authenticated users with Contributor-level access or higher to inject malicious scripts. These scripts then execute whenever any user views the affected page.

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