PHP object injection via unserialized settings import
Published Jan 2, 2023 · Updated Apr 10, 2025
PHP object injection in Video User Manuals White Label CMS before 2.5 allows remote authenticated users to invoke PHP magic methods. The Import Settings handler passes the uploaded import_file payload to unserialize(), instantiating attacker-chosen objects without restricting allowed classes. Administrator access and a suitable gadget chain are required; the resulting magic methods execute in the WordPress server context.
Summary
What happened
PHP object injection in Video User Manuals White Label CMS before 2.5 allows remote authenticated users to invoke PHP magic methods. The Import Settings handler passes the uploaded import_file payload to unserialize(), instantiating attacker-chosen objects without restricting allowed classes. Administrator access and a suitable gadget chain are required; the resulting magic methods execute in the WordPress server context.
The record
- CVE
- CVE-2022-4302
- Published
- Jan 2, 2023
- Updated
- Apr 10, 2025
- Vendor
- Video User Manuals
- Product
- White Label CMS
- Classifications
- CWE-502
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jan 2, 2023CVE publishedPublication date reported by the CVE source.
- Apr 10, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.5
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- WPScan Import Settings object-injection proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo