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 WP BBCode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'url' shortcode in all versions up to, and including, 1.8.1 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
WP BBCode versions 1.8.1 and earlier contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability affects the scope beyond the vulnerable component, potentially impacting other users and site functionality. Site administrators should update to a version newer than 1.8.1 to remediate this issue.
What an attacker can do
Inject malicious JavaScript that executes in other users' browsers and affects site functionality.
Potential impact on your site
Authenticated users can inject scripts affecting other visitors and site operations; data exposure or site defacement possible.
Conditions required to exploit
Attacker must have a valid user account with low-level privileges; no user interaction required.
Key dates
External resources
