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 Slider, Gallery, and Carousel by MetaSlider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘aria-label’ parameter in all versions up to, and including, 3.98.0 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
MetaSlider versions up to 3.98.0 contain a stored cross-site scripting (XSS) vulnerability that allows authenticated users with low privileges to inject malicious scripts. These scripts execute in the browsers of other site visitors, potentially compromising their sessions or stealing data. The vulnerability affects the site's scope, meaning impacts may extend beyond the slider component itself.
What an attacker can do
Inject malicious JavaScript that runs in other users' browsers when they view the site.
Potential impact on your site
Visitors' sessions and data can be compromised; site reputation and user trust at risk.
Conditions required to exploit
Attacker must have a low-privilege authenticated account (e.g., contributor or subscriber role).
Key dates
External resources
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