What the vulnerability does
01Description
The Counter Box: Add Engaging Countdowns, Timers & Counters to Your WordPress Site plugin for WordPress is vulnerable to DOM-Based Stored Cross-Site Scripting via the ‘content’ parameter in all versions up to, and including, 2.0.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, 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
The Counter Box plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in versions up to 2.0.6. An authenticated administrator with high privileges can inject malicious scripts that execute in the browsers of other site users, potentially compromising their sessions or stealing sensitive data. The vulnerability requires high attack complexity and affects the integrity and confidentiality of the site.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers when they view affected pages.
Potential impact on your site
04Site Impact
Administrators could unknowingly inject malicious code affecting all site visitors; user sessions and data at risk.
Conditions required to exploit
05Prerequisites
Attacker must be an authenticated administrator or high-privilege user; no user interaction required.
Key dates
06Disclosure timeline
March 1, 2025
CVE published
April 8, 2026
Record updated
