Unauthenticated PHP Object Injection in Booster for WooCommerce by WordPress
CVE-2026-42718

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Booster For WooCommerce
Vendor
CVE Published:
10 October 2026

What is CVE-2026-42718?

The Booster for WooCommerce plugin versions up to 8.4.0 are susceptible to an unauthenticated PHP Object Injection vulnerability. This security flaw allows attackers to inject malicious PHP objects through crafted requests, potentially leading to unauthorized actions within the WooCommerce environment. Users are advised to update to the latest version to mitigate risks.

Affected Version(s)

Booster for WooCommerce <= 8.4.0

References

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

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

John Ryan Albon | Patchstack Bug Bounty Program
.