Betheme <= 26.6.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2022-45363
CVSS Medium (6.4)
Publicly Published November 21, 2022
Last Updated January 22, 2024
Researcher Dave Jong
Description

The Betheme theme for WordPress is vulnerable to authorization bypass that leads to stored Cross-Site Scripting in versions up to, and including, 26.6.2. This is due to a missing capability check on the mfnvb_init_vb() function that initializes the visual editor for the plugin and discloses the plugin's page builder nonces and functionality to an attacker. This makes it possible for authenticated attacks with minimal permissions, such as a subscriber, to trigger the Betheme page editor for any post or page and view the information along with make any changes to the post/page accessed through the editor. This CVE is specific to being able to inject malicious JavaScript into the pages and posts that can be edited by the plugin as a result of the initial missing authorization vulnerability. This is an extension of CVE-2022-45356.

References

1 affected software package

Software Type Theme
Software Slug betheme (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 26.6.2
Patched Version
  • 26.6.3
This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. License Detail.