CVE-2026-1242BlockSpare - Gutenberg Site Builder Blocks & Starter Sites <= 4.2.6 - Incorrect Authorization to Authenticated (Subscriber+) Arbitrary Post Creation
Updated under an hour ago ()
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It affects BlockSpare – Gutenberg Blocks for News, Magazine, Blog & Business Websites. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The BlockSpare plugin for WordPress is vulnerable to authorization bypass due to incorrect logic in the permission callback in all versions up to, and including, 4.2.6 due to the use of an AND (&&) operator instead of an OR (||) operator. This makes it possible for authenticated attackers, with Subscriber-level access and above, to bypass authorization checks and create arbitrary posts.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-863
- 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
- Sep 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
blockspare BlockSpare – Gutenberg Blocks for News, Magazine, Blog & Business Websites blockspare:gutenberg_blocks_for_news_magazine_blog_and_business_websites (from the name) | through 4.2.6 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2e1bbaa2-5bb3-442e-b4a8-96db98500e7b?source=cve
- https://plugins.trac.wordpress.org/browser/blockspare/tags/3.3.0/inc/layout/save-templates.php#L9
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.