GenerateBlocks <= 2.2.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure via Dynamic Tag Replacements
Summary
| CVE | CVE-2026-3454 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-05 07:16:00 UTC |
| Updated | 2026-05-05 07:16:00 UTC |
| Description | The GenerateBlocks plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.2.0. This is due to missing object-level authorization checks in the /wp-json/generateblocks/v1/dynamic-tag-replacements REST endpoint. The endpoint only verifies that the user has the edit_posts capability but does not verify the user has permission to access the specific post or its associated data referenced by attacker-controlled id parameters in dynamic tag content. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive information from arbitrary posts including author email addresses and non-protected post meta values by crafting dynamic tag payloads such as {{post_meta id:<target>|key:<meta_key>}} and {{post_title id:<target>|link:author_email}}. |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Problem Types: CWE-639 | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | DECLARED | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Edge22 | GenerateBlocks | affected 2.2.0 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class... | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/0297d524-e016-4f8d-920c-d58c6... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/class-meta-handler... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class... | [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: Supanat Konprom (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-03-02T18:34:42.000Z | Vendor Notified |
| CNA | 2026-05-04T17:58:25.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.