What the vulnerability does
01Description
The Betheme theme for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 27.5.5 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 the SVG file.
Explanation of Vulnerability in Simple Terms
02Summary
Betheme versions up to 27.5.5 contain a stored cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. When executed, these scripts run in the browsers of other site visitors, potentially compromising their sessions or stealing sensitive data. The vulnerability affects the site's integrity and confidentiality.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers and steal their session data or credentials.
Potential impact on your site
04Site Impact
Authenticated users can inject persistent malicious code that affects all site visitors, risking data theft and account compromise.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account (e.g., subscriber or contributor role) on the site.
Key dates
06Disclosure timeline
September 13, 2024
CVE published
April 8, 2026
Record updated