CVE-2026-13154: CWE-200 Information Exposure in Gutenberg Essential Blocks
A vulnerability in the Gutenberg Essential Blocks WordPress plugin before version 6.4.0 allows unauthenticated users to read published entries of custom post types that are registered as non-public. This occurs because the plugin does not verify that an attacker-supplied post type is publicly viewable before querying it in one of its public REST routes. The vulnerability is classified as CWE-200 (Information Exposure) and has a high severity rating with a CVSS score of 7.5.
AI Analysis
Technical Summary
The Gutenberg Essential Blocks WordPress plugin versions prior to 6.4.0 contain an information exposure vulnerability (CWE-200) due to insufficient validation of post type visibility in a public REST API route. Specifically, the plugin fails to verify whether a requested custom post type is publicly viewable before processing the query. This flaw allows unauthenticated attackers to access published entries of custom post types that the site has registered as non-public, potentially exposing sensitive content unintentionally.
Potential Impact
Unauthenticated attackers can access published content of custom post types that are intended to be non-public, leading to unintended information disclosure. There is no impact on integrity or availability reported. The confidentiality impact is high as sensitive or restricted content may be exposed to unauthorized users.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should monitor official Gutenberg Essential Blocks plugin updates and apply version 6.4.0 or later once available to remediate this issue. Until a patch is applied, consider restricting access to the REST API or disabling affected routes if feasible.
CVE-2026-13154: CWE-200 Information Exposure in Gutenberg Essential Blocks
Description
A vulnerability in the Gutenberg Essential Blocks WordPress plugin before version 6.4.0 allows unauthenticated users to read published entries of custom post types that are registered as non-public. This occurs because the plugin does not verify that an attacker-supplied post type is publicly viewable before querying it in one of its public REST routes. The vulnerability is classified as CWE-200 (Information Exposure) and has a high severity rating with a CVSS score of 7.5.
CVSS v3.1
Score 7.5high
Affected software
Gutenberg Essential Blocks
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Gutenberg Essential Blocks WordPress plugin versions prior to 6.4.0 contain an information exposure vulnerability (CWE-200) due to insufficient validation of post type visibility in a public REST API route. Specifically, the plugin fails to verify whether a requested custom post type is publicly viewable before processing the query. This flaw allows unauthenticated attackers to access published entries of custom post types that the site has registered as non-public, potentially exposing sensitive content unintentionally.
Potential Impact
Unauthenticated attackers can access published content of custom post types that are intended to be non-public, leading to unintended information disclosure. There is no impact on integrity or availability reported. The confidentiality impact is high as sensitive or restricted content may be exposed to unauthorized users.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should monitor official Gutenberg Essential Blocks plugin updates and apply version 6.4.0 or later once available to remediate this issue. Until a patch is applied, consider restricting access to the REST API or disabling affected routes if feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-06-24T11:20:17.620Z
- State
- PUBLISHED
Threat ID: 6a742932bf8831d53945d6ab
Added to database: 08/06/2026, 06:26:58 UTC
Last enriched: 08/13/2026, 17:16:55 UTC
Last updated: 09/21/2026, 22:01:32 UTC
Views: 36
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