CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
The Show YouTube video plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'syv' shortcode in all versions up to, and including, 1.1 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.
Explanation of Vulnerability in Simple Terms
The Show YouTube video plugin for WordPress contains a cross-site scripting (XSS) vulnerability in versions up to 1.1. An attacker with low-level user access can inject malicious scripts that execute in other users' browsers, potentially stealing session tokens or modifying page content. The vulnerability affects all site visitors due to scope escalation.
What an attacker can do
Inject malicious JavaScript that runs in other users' browsers and affects site functionality.
Potential impact on your site
Compromised user accounts, stolen admin sessions, or defaced site content if a low-privilege user is compromised.
Conditions required to exploit
Attacker must have low-level user account access (e.g., contributor or subscriber role).
Key dates
External resources
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