CVE-2026-86783
Last modified
CVE-2026-86783 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. The Post Grid Gutenberg Blocks WordPress plugin before 5.0.41 does not perform an authorization or post-visibility check on a REST API route that returns the custom field keys of a given post, allowing unauthenticated users to disclose the custom field key names of arbitrary posts, including private, draft, pending, scheduled and password-protected posts.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.
Description
The Post Grid Gutenberg Blocks WordPress plugin before 5.0.41 does not perform an authorization or post-visibility check on a REST API route that returns the custom field keys of a given post, allowing unauthenticated users to disclose the custom field key names of arbitrary posts, including private, draft, pending, scheduled and password-protected posts.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Post Grid Gutenberg Blocks | < 5.0.41 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-86783?
How severe is CVE-2026-86783?
How do I fix CVE-2026-86783?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-86777AlchemyCMS versions before 7.4.16 and 8.x before 8.3.6 fail …5.3
- CVE-2026-86779The Visualizer WordPress plugin before 4.0.6 does not prope…2.7
- CVE-2026-8678The MyParcel plugin for WordPress is vulnerable to authoriza…4.3
- CVE-2026-86780The Featured Image with URL WordPress plugin before 1.0.6 do…6.8
- CVE-2026-86781The SSL Zen — SSL Certificate Installer & HTTPS Redirects Wo…5.3
- CVE-2026-86782The Visualizer WordPress plugin before 4.0.6 does not prope…5.5
- CVE-2026-86784The Visualizer WordPress plugin before 4.0.8 does not sanit…6.8
- CVE-2026-86785The Social Commerce for WooCommerce WordPress plugin through…5.3
- CVE-2026-86788The HT Mega Addons for Elementor WordPress plugin before 3.…6.8
- CVE-2026-8679The AudioIgniter plugin for WordPress is vulnerable to Insec…7.5
- CVE-2026-86790The WP Highlight Box WordPress plugin through 1.0 does not e…6.8
- CVE-2026-86792Apache Airflow Apache Kafka provider versions 1.15.0 before …8.8
Are you affected by CVE-2026-86783?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST