CVE-2025-0450: Betheme <= 27.6.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom JS
The Betheme plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's custom JS functionality in all versions up to, and including, 27.6.1 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-0450?
CVE-2025-0450 is considered a high severity vulnerability due to the potential for stored cross-site scripting attacks.
How do I fix CVE-2025-0450?
To fix CVE-2025-0450, update the Betheme plugin to version 27.6.2 or later where the vulnerability has been addressed.
What versions of Betheme are affected by CVE-2025-0450?
All versions of the Betheme plugin up to and including 27.6.1 are affected by CVE-2025-0450.
What types of attacks can be executed due to CVE-2025-0450?
CVE-2025-0450 can allow attackers to perform stored cross-site scripting, leading to unauthorized actions on behalf of users.
Is input sanitization a problem in CVE-2025-0450?
Yes, CVE-2025-0450 is caused by insufficient input sanitization and output escaping on user-supplied attributes.