CVE-2026-3454
GenerateBlocks <= 2.2.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure via Dynamic Tag Replacements
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
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}}.
Timeline
ID reserved
By Wordfence
- 2 months later
· 2 months later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.54% · top 54% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
- affected ≤ 2.2.0
References (8)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0297d524-e016-4f8d-920c-d58c62edb2a0?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tags.php#L424 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tags.php#L501 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tag-callbacks.php#L64 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tag-callbacks.php#L364 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/class-meta-handler.php#L335 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tags.php#L392 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3495827%40generateblocks%2Ftrunk&old=3415721%40generateblocks%2Ftrunk&sfp_email=&sfph_mail= (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-3454)Record last updated .