What the vulnerability does
01Description
The Frndzk Expandable Bottom Bar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'text' parameter in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Frndzk Expandable Bottom Bar versions 1.0 and earlier contain a cross-site scripting (XSS) vulnerability. An attacker with high-level privileges can inject malicious scripts that execute in other users' browsers, potentially compromising site security. The vulnerability affects the entire site scope due to its network-accessible nature.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers to steal data or perform actions on their behalf.
Potential impact on your site
04Site Impact
A compromised admin account could inject persistent XSS affecting all site visitors, leading to credential theft or malware distribution.
Conditions required to exploit
05Prerequisites
Attacker must have high-level site privileges (administrator or equivalent role); no user interaction required.
Key dates
06Disclosure timeline
March 25, 2025
CVE published
April 8, 2026
Record updated
