CVE-2026-13153
HighPublic exploitThe Gutenberg Essential Blocks WordPress plugin before 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, allowing unauthenticated users to read the lifetime number of units sold…
Published Aug 6, 2026 · Updated Aug 26, 2026 · Also known as 61bbf0a0-7ba7-450c-9270-1000a8f46eca, EUVD-2026-53735, GHSA-x777-p9m5-h8hq
Key Facts
Patch immediately- CVE-2026-13153 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting essential-blocks (wordpress-plugin), Gutenberg Essential Blocks.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 1.5% probability of exploitation in the next 30 days.
- Fixed versions are available, including essential-blocks 6.4.0, Gutenberg Essential Blocks 6.4.0.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
1.5%
Higher than 74.2% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-13153 brief as a PDF
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Description
The Gutenberg Essential Blocks WordPress plugin before 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, allowing unauthenticated users to read the lifetime number of units sold for any published product.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| essential-blockswordpress-plugin | See advisory | 6.4.0 |
| Gutenberg Essential Blocks | See advisory | 6.4.0 |
Patched Releases
essential-blocks
6.4.0
Gutenberg Essential Blocks
6.4.0
Timeline
Publicly disclosed
Aug 6, 2026
Last updated
Aug 26, 2026
Weakness Type
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/61bbf0a0-7ba7-450c-9270-1000a8f46eca?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/61bbf0a0-7ba7-450c-9270-1000a8f46eca?source=api-scan
- otherhttps://wpscan.com/vulnerability/0401a229-9630-49ab-ae4b-53360cf5d109/
FAQ
Common Questions.
The Gutenberg Essential Blocks WordPress plugin before 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, allowing unauthenticated users to read the lifetime number of units sold for any published product.
Affected: essential-blocks (wordpress-plugin); Gutenberg Essential Blocks. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including essential-blocks 6.4.0, Gutenberg Essential Blocks 6.4.0.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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