CVE-2026-3173Meta Field Block <= 1.5.1 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary User Meta Exposure
Updated under an hour ago ()
Does this affect you?
It affects mr2p Meta Field Block – Display custom fields in the Block Editor without coding. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-639
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- May 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mr2p Meta Field Block – Display custom fields in the Block Editor without coding mr2p:meta_field_block_display_custom_fields_in_the_block_editor_without_coding (from the name) | through 1.5.1 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/247df9e2-0a63-49ad-86fa-cb4c6e62c4cf?source=cve
- https://plugins.trac.wordpress.org/browser/display-a-meta-field-as-block/trunk/meta-field-block.php#L206
- https://plugins.trac.wordpress.org/browser/display-a-meta-field-as-block/trunk/meta-field-block.php#L328
- https://plugins.trac.wordpress.org/changeset/3472303/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.