CVE Catalog

CVE-2026-92746

MediumCVSS 6.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.19%

8th percentile - higher than 8% of all known CVEs

Summary

The Gutenverse plugin for WordPress (versions up to and including 4.0.8) is vulnerable to Stored Cross-Site Scripting via the Post Comment Block 'suffixMain' Attribute. Due to insufficient input sanitization and output escaping, an authenticated attacker with contributor-level access can inject malicious scripts that execute whenever a user accesses the injected page.

Risk Assessment

An attacker with contributor-level access can persistently inject malicious JavaScript, potentially leading to session theft, account takeover, or modification of content visible to other users.

Recommendation

Update the Gutenverse plugin to a version newer than 4.0.8 as soon as a fix is available, and consider restricting contributor-level permissions.

Related vulnerabilities

Original NVD description (English source)

The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Post Comment Block 'suffixMain' Attribute in all versions up to, and including, 4.0.8 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. WordPress core wp_kses_post sanitization does not mitigate this vulnerability because the payload is stored inside a Gutenberg block delimiter comment rather than as a raw HTML tag, and is only rendered as exploitable HTML at the PHP render stage.

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