GenerateBlocks <= 2.1.2 - Authenticated (Contributor+) Information Exposure via Metadata

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-12512
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-13 16:16:46 UTC
Updated2026-10-07 20:10:01 UTC
DescriptionThe GenerateBlocks plugin for WordPress is vulnerable to information exposure due to missing object-level authorization checks in versions up to, and including, 2.1.2. This is due to the plugin registering multiple REST API routes under `generateblocks/v1/meta/` that gate access with `current_user_can('edit_posts')`, which is granted to low-privileged roles such as Contributor. The handlers accept arbitrary entity IDs (user IDs, post IDs, etc.) and meta keys, returning any requested metadata with only a short blacklist of password-like keys for protection. There is no object-level authorization ensuring the caller is requesting only their own data, and there is no allowlist of safe keys. This makes it possible for authenticated attackers, with Contributor-level access and above, to exfiltrate personally identifiable information (PII) and other sensitive profile data of administrator accounts or any other users by directly querying user meta keys via the exposed endpoints via the `get_user_meta_rest` function. In typical WordPress + WooCommerce setups, this includes names, email, phone, and address fields that WooCommerce stores in user meta, enabling targeted phishing, account takeover pretexting, and privacy breaches.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Problem Types: CWE-200 | CWE-200 CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Edge22 GenerateBlocks affected 2.1.2 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/generateblocks/tags/2.1.1/includes/class-meta-handler... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/6affdb56-39cc-4749-b7cb-b80b7... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/generateblocks/tags/2.1.1/includes/class-meta-handler... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/generateblocks/tags/2.1.1/includes/class-meta-handler... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3415721/generateblocks/trunk/includes/class-meta-ha... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Athiwat Tiprasaharn (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-10-30T15:17:23.000ZVendor Notified
CNA2025-12-12T14:28:54.000ZDisclosed

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