CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
The Link Whisper Free plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the user_id parameter in all versions up to, and including, 0.9.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
Link Whisper Free versions up to 0.9.0 contain a cross-site scripting (XSS) vulnerability that allows unauthenticated attackers to inject malicious scripts. The vulnerability has a changed scope, meaning the impact can extend beyond the vulnerable component itself. No user interaction is required for exploitation. Site administrators should update to a version newer than 0.9.0 when available.
What an attacker can do
Inject malicious JavaScript that executes in visitors' browsers and affects other site components.
Potential impact on your site
Visitors' browsers could execute attacker-controlled scripts, potentially stealing data or redirecting users.
Conditions required to exploit
Network access only; no authentication or user interaction required.
Key dates
External resources
