What the vulnerability does
01Description
The BlockArt Blocks – Gutenberg Blocks, Page Builder Blocks ,WordPress Block Plugin, Sections & Template Library plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘timestamp’ attribute in all versions up to, and including, 2.2.13 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
BlockArt Blocks contains a stored cross-site scripting (XSS) vulnerability in versions up to 2.2.13. An authenticated user with low privileges can inject malicious scripts into block content that execute in the browsers of other site visitors and administrators. The vulnerability affects the scope beyond the vulnerable component, potentially compromising site security and user data.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers when they view affected pages.
Potential impact on your site
04Site Impact
Malicious scripts can steal admin credentials, modify site content, or redirect visitors to phishing sites.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., contributor or editor role).
Key dates
06Disclosure timeline
December 2, 2025
CVE published
April 8, 2026
Record updated
