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 Fancy Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'author' shortcode attribute in the 'testimonial' shortcode in all versions up to, and including, 1.0 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
Fancy Testimonials versions 1.0 and earlier contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has a changed scope, meaning injected code can affect other users or site functionality beyond the vulnerable component. An attacker with low-level account access can craft malicious input that executes in other users' browsers, potentially compromising their sessions or stealing data.
What an attacker can do
Inject malicious JavaScript that runs in other users' browsers and affects site functionality.
Potential impact on your site
Authenticated users can inject scripts affecting other visitors and site operations; requires immediate patching.
Conditions required to exploit
Attacker needs a low-privilege account on the site; no user interaction required from victims.
Key dates
External resources
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