Meta Field Block <= 1.5.1 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary User Meta Exposure
The Meta Field Block plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.5.1. This is due to the plugin allowing users to specify arbitrary object IDs and object types via block attributes without validating whether the authenticated user has permission to access the requested object's metadata. This makes it possible for authenticated attackers, with Contributor-level access and above, to read arbitrary user meta, post meta, and term meta data from any object in the database. On sites using plugins that store sensitive data in meta fields (e.g., WooCommerce billing/shipping information), this could lead to the exposure of Personally Identifiable Information (PII) including names, email addresses, phone numbers, and physical addresses.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Meta Field Block – Display Custom Fields for ACF, Meta Box and More | <= 1.5.1 | 1.5.2 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-639- Platform
- WordPress
- Package
Meta Field Block – Display Custom Fields for ACF, Meta Box and More- Disclosed
- 27.05.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 247df9e2-0a63-49ad-86fa-cb4c6e62c4cf - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Meta Field Block – Display Custom Fields for ACF, Meta Box and More
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 08.2024 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 4
Disclosures per year
- 2024: 1
- 2025: 0
- 2026: 3
-
Meta Field Block <= 1.5.1 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary User Meta Exposure this entry
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