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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-19906 | 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. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 07 Jul 2025 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 03 Jul 2025 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | PHPStudy 2016-2018 Backdoor Remote Code Execution Vulnerability | |
| Weaknesses | CWE-94 | |
| References |
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| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2025-07-07T19:01:51.371Z
Reserved: 2025-04-15T19:15:22.549Z
Link: CVE-2025-34061
Updated: 2025-07-07T19:01:46.143Z
Status : Awaiting Analysis
Published: 2025-07-03T20:15:21.570
Modified: 2025-07-08T16:19:11.700
Link: CVE-2025-34061
No data.
OpenCVE Enrichment
No data.
EUVD