CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
The Just Highlight plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Highlight Color' setting in all versions up to, and including, 1.0.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the plugin's settings page.
Explanation of Vulnerability in Simple Terms
Just Highlight versions 1.0.3 and earlier contain a cross-site scripting (XSS) vulnerability that allows high-privilege users to inject malicious scripts affecting other users or the site scope. The vulnerability requires high attack complexity and high privileges to exploit. Low confidentiality and integrity impact is possible.
What an attacker can do
Inject malicious scripts that execute in other users' browsers or affect site functionality.
Potential impact on your site
Administrators or high-privilege users could be tricked into actions that compromise other user accounts or site data.
Conditions required to exploit
Attacker must have high-level privileges (e.g., admin or editor role) and the attack requires specific conditions to succeed.
Key dates
External resources
