RCE in Henan Xiaopi Security Technology Co., Ltd. Phpstudy
CVE-2025-34061
A backdoor in PHPStudy versions 2016 through 2018 allows unauthenticated remote attackers to execute arbitrary PHP code on affected installations. The backdoor listens for base64-encoded PHP payloads in the Accept-Charset HTTP header of incoming requests, decodes and executes the payload without proper validation. This leads to remote code execution as the web server user, compromising the affected system.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.012 (64.2th percentile) — read the EPSS interpretation.
Affected products
- Henan Xiaopi Security Technology Co., Ltd. Phpstudy — versions 2016
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (product)
Frequently asked questions
- What is CVE-2025-34061?
- CVE-2025-34061 is a vulnerability in Henan Xiaopi Security Technology Co., Ltd. Phpstudy, classified under Code Injection. Published 2025-07-03.
- Is CVE-2025-34061 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.