CVE-2026-1242
Medium
Description
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.
SeverityMedium
CVSS4.3
Exploit probability—
ProductBlockSpare – Gutenberg Blocks for News, Magazine, Blog & Business Websites
PublishedSep 19, 2026
First seenSep 19, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| blockspare BlockSpare – Gutenberg Blocks for News, Magazine, Blog & Business Websites | v ≤ 4.2.6 | — |
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