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 Video Onclick plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `youtube` shortcode in all versions up to, and including, 0.4.7 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
Video Onclick versions 0.4.7 and earlier contain a cross-site scripting vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, potentially affecting the entire site. The vulnerability requires network access but no user interaction from the victim.
What an attacker can do
Inject and execute malicious JavaScript in other users' browsers to steal data or perform actions on their behalf.
Potential impact on your site
Authenticated users can inject scripts affecting other site visitors; data theft and unauthorized actions are possible.
Conditions required to exploit
Attacker must have a low-privilege authenticated account; no victim interaction required.
Key dates
External resources
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