Unauthenticated PHP Object Injection in Playroom Theme by Patchstack
CVE-2026-39577

8.1HIGH

Key Information:

Vendor

WordPress
Status
Playroom
Vendor
CVE Published:
16 June 2026

What is CVE-2026-39577?

The Playroom theme for WordPress versions up to 1.4.1 is susceptible to unauthenticated PHP Object Injection. This vulnerability allows attackers to exploit weaknesses in the theme's code, enabling them to manipulate the application's behavior and potentially execute harmful commands. Without requiring authentication, unauthorized users can exploit this flaw, emphasizing the importance of updating the theme to a secure version to protect website integrity.

Affected Version(s)

Playroom <= 1.4.1

References

https://patchstack.com/database/wordpress/theme/playroom/...
vdb-entry

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Denver Jackson | Patchstack Bug Bounty Program
.