CVE-2026-13154
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk17th percentile - higher than 17% of all known CVEs
Summary
The Gutenberg Essential Blocks WordPress plugin before version 6.4.0 does not verify that an attacker-supplied post type is publicly viewable before querying it in one of its public REST routes. This allows unauthenticated users to read published entries of custom post types that the site registered as non-public.
Risk Assessment
The organization may expose content intended to remain private, potentially breaching data confidentiality or privacy regulations.
Recommendation
Update the Gutenberg Essential Blocks plugin to version 6.4.0 or later, which includes the fix.
Other vulnerabilities in Gutenberg Essential Blocks
See all- CVE-2026-13153High
The Gutenberg Essential Blocks WordPress plugin before version 6.4.0 does not restrict access to one of its public REST routes and over-fetches a non-public WooCommerce per-product sales metric into the response. This allows unauthenticated users to read the lifetime number of units sold for any published product.
- CVE-2026-10586High
The Gutenberg Essential Blocks plugin for WordPress up to version 6.1.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the `save_ai_generated_image()` function. Authenticated attackers with Author-level access or higher can make requests to arbitrary external and internal locations, potentially reading or modifying data from internal services.
Original NVD description (English source)
The Gutenberg Essential Blocks WordPress plugin before 6.4.0 does not verify that an attacker-supplied post type is publicly viewable before querying it in one of its public REST routes, allowing unauthenticated users to read published entries of custom post types that the site registered as non-public.