Threat intelligence

Blocksy Companion Pro <= 2.1.37 - Authenticated (Contributor+) Remote Code Execution

CVE-2026-40783 · blocksy-companion-pro

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Blocksy Companion Pro at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Blocksy Companion Pro <= 2.1.37 - Authenticated (Contributor+) Remote Code Execution
Affected software: blocksy-companion-pro(Plugin)
Affected versions: ≤ 2.1.37
Authentication: Authenticated (see advisory title)
Vulnerability type: Remote code execution
CVE: CVE-2026-40783
Published: 22 April 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run arbitrary code on the server if exploited.
Source: Data imported from Wordfence Intelligence (advisory 9921f4d0-0aa2-457e-afb2-7ecafb605948). Methodology and redistribution notes

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