Remote Code Execution Vulnerability in Blocksy Companion Pro by WordPress
CVE-2026-40783

9.9CRITICAL

Key Information:

Vendor

WordPress
Status
Blocksy Companion Pro
Vendor
CVE Published:
17 June 2026

What is CVE-2026-40783?

The Blocksy Companion Pro plugin, versions 2.1.37 and earlier, contains a flaw that allows attackers to execute arbitrary code remotely. This vulnerability poses serious risks as it can enable unauthorized access and control over the affected WordPress installations. Organizations using Blocksy Companion Pro should prioritize updating to the latest version to mitigate potential exploitation.

Affected Version(s)

Blocksy Companion Pro <= 2.1.37

References

https://patchstack.com/database/wordpress/plugin/blocksy-...
vdb-entry

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nguyen Ba Khanh | Patchstack Bug Bounty Program
.