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 Evenium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'evenium_single_event' shortcode in all versions up to, and including, 1.3.11 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
Evenium versions up to 1.3.11 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts affecting other users. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself. An attacker with low-level privileges can inject code that executes in other users' browsers, potentially compromising their sessions or data.
What an attacker can do
Inject malicious scripts that execute in other users' browsers, potentially stealing session data or performing actions on their behalf.
Potential impact on your site
Authenticated users can be compromised through script injection; user accounts and data may be at risk depending on what the injected script does.
Conditions required to exploit
Attacker must have a low-privilege account on the site; no user interaction required from the victim.
Key dates
External resources
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