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 Betheme theme for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘page_title’ parameter in all versions up to, and including, 28.1.6 due to insufficient input sanitization and output escaping of theme breadcrumbs. 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
Betheme versions up to 28.1.6 contain a stored cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. When another user views the affected content, the script executes in their browser with their privileges. The vulnerability has a changed scope, meaning it can affect other users and site functionality beyond the vulnerable component itself.
What an attacker can do
Inject malicious scripts that execute when other users view the affected content, potentially stealing their session data or performing actions on their behalf.
Potential impact on your site
Other users' accounts and site data are at risk if a low-privilege user injects malicious code. Visitor sessions and admin actions could be compromised.
Conditions required to exploit
Attacker must have a low-privilege user account (e.g., subscriber or contributor) on the site. No user interaction required from the victim.
Key dates
External resources
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