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CVE-2026-1242

BlockSpare – Gutenberg Blocks for News, Magazine, Blog &… · Vulnerability

CVSS 3.1 4.3 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-1242

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-1242

Published

BlockSpare – Gutenberg Blocks for News, Magazine, Blog & Business Websites

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "blockspare",
                    "product": "BlockSpare – Gutenberg Blocks for News, Magazine, Blog & Business Websites",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "4.2.6",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON