CVE Catalog

CVE-2026-2573

MediumCVSS 6.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.25%

16th percentile - higher than 16% of all known CVEs

Summary

The GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'postBodyCss' parameter in all versions up to, and including, 2.4.4 due to insufficient input sanitization and output escaping. Authenticated attackers with Contributor-level access and above can inject scripts.

Risk Assessment

The risk includes script execution in browsers of users visiting injected pages, potentially leading to data theft or session hijacking.

Recommendation

Upgrade the GutenKit plugin to a version newer than 2.4.4 that includes the fix.

Related vulnerabilities

Original NVD description (English source)

The GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘postBodyCss’ parameter in all versions up to, and including, 2.4.4 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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS