What the vulnerability does
01Description
The Post Grid, Form Maker, Popup Maker, WooCommerce Blocks, Post Blocks, Post Carousel – Combo Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tag' attribute in blocks in all versions up to, and including, 2.2.80 due to insufficient input sanitization and output escaping. 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.
Explanation of Vulnerability in Simple Terms
02Summary
Post Grid versions up to 2.2.80 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts into the plugin's data, which execute in the browsers of other site visitors and administrators. The vulnerability affects the entire site scope due to how the plugin processes and displays user input.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers when they view affected plugin content.
Potential impact on your site
04Site Impact
Attackers with basic user accounts can steal admin session tokens, modify site content, or redirect visitors to malicious sites.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege authenticated account (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
June 7, 2024
CVE published
April 8, 2026
Record updated
