Answer in brief
CVE-2026-13154 records a High severity (CVSS 7.5) vulnerability in Essential Blocks < 6.4.0 - Unauthenticated Non-Public Custom Post Type Content Disclosure via queries Endpoint. The current sources do not mark it as known exploited. The current feed maps Unknown/Gutenberg Essential Blocks (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Unknown/Gutenberg Essential Blocks (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Unknown/Gutenberg Essential Blocksgeneric | >=0 <6.4.0 | 6.4.0 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-13154 records a High severity (CVSS 7.5) vulnerability in Essential Blocks < 6.4.0 - Unauthenticated Non-Public Custom Post Type Content Disclosure via queries Endpoint. The current sources do not mark it as known exploited. The current feed maps Unknown/Gutenberg Essential Blocks (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Unknown/Gutenberg Essential Blocks (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Unknown/Gutenberg Essential Blocksgeneric | >=0 <6.4.0 | 6.4.0 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.