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 VK All in One Expansion Unit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'vkExUnit_sns_title' parameter in all versions up to, and including, 9.112.3 due to insufficient input sanitization and output 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.
Explanation of Vulnerability in Simple Terms
VK All in One Expansion Unit versions up to 9.112.3 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, potentially stealing session tokens or performing actions on their behalf. The vulnerability affects the entire site scope due to how the application processes and displays user-controlled input.
What an attacker can do
Inject malicious scripts that run in other users' browsers and steal their session data or perform actions as them.
Potential impact on your site
Any authenticated user can inject persistent malicious code affecting all site visitors, compromising user accounts and site integrity.
Conditions required to exploit
Attacker must have a low-privilege user account on the site; no user interaction required from victims.
Key dates
External resources
