CVE-2026-1242 Details
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.
A vulnerability exists in the BlockSpare plugin for WordPress, affecting all versions through 4.2.6. The issue arises from an authorization bypass caused by incorrect logic in the permission callback, where an AND operator was used instead of an OR operator. This flaw enables authenticated attackers with Subscriber-level access and above to bypass authorization checks and create arbitrary posts.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 19, 2026CISA-ADP
Assessed Sep 19, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://plugins.trac.wordpress.org/browser/blockspare/tags/3.3.0/inc/layout/save-templates.php#L9 | [email protected] | Broken LinkSource CodeVendor |
| https://www.wordfence.com/threat-intel/vulnerabilities/id/2e1bbaa2-5bb3-442e-b4a8-96db98500e7b?source=cve | [email protected] | AdvisoryBundleRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| BlockSpare | <= 4.2.6 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 19, 2026 | CVE Modified | CISA-ADP |
| Sep 19, 2026 | New CVE Received | [email protected] |