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 SM CountDown Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's smcountdown shortcode in versions less than, or equal to, 1.2 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
SM CountDown Widget versions 1.2 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 and site functionality. An attacker with low-level site access can craft malicious input that executes in other users' browsers when they view affected pages.
What an attacker can do
Inject JavaScript that runs in other users' browsers, potentially stealing session tokens or modifying page content.
Potential impact on your site
Authenticated users can inject malicious scripts affecting other visitors; site data and user sessions at risk.
Conditions required to exploit
Attacker needs a low-privilege account on the site (e.g., subscriber or contributor role).
Key dates
External resources
