myStickymenu <= 2.6.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Form Lead Deletion

Missing Authorization
CVE CVE-2023-5509
CVSS Medium (6.3)
Publicly Published October 27, 2023
Last Updated January 22, 2024
Researcher Krzysztof Zając
Description

The Floating Notification Bar, Sticky Menu on Scroll, Announcement Banner, and Sticky Header for Any Theme – My Sticky Bar (formerly myStickymenu) plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the my_sticky_menu_bulks() function in all versions up to, and including, 2.6.4. This makes it possible for authenticated attackers, with subscruber-level access and above, to delete arbitrary form leads. There were several additional AJAX actions in the plugin with missing capability checks as well such as mystickymenu_admin_send_message_to_owner(), stickymenu_widget_delete(), mystickymenu_widget_status() and more that make is possible for authenticated attackers to perform unauthorized actions.

References

1 affected software package

Software Type Plugin
Software Slug mystickymenu (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 2.6.4
Patched Version
  • 2.6.5
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