Arbitrary file upload in Kaseya Kserver
CVE-2013-10034
An unrestricted file upload vulnerability exists in Kaseya KServer versions prior to 6.3.0.2. The uploadImage.asp endpoint allows unauthenticated users to upload files to arbitrary paths via a crafted filename parameter in a multipart/form-data POST request. Due to the lack of authentication and input sanitation, an attacker can upload a file with an .asp extension to a web-accessible directory, which can then be invoked to execute arbitrary code with the privileges of the IUSR account. The vulnerability enables remote code execution without prior authentication and was resolved in version 6.3.0.2 by removing the vulnerable uploadImage.asp endpoint.
Vulnerability class: Unrestricted File Upload
EPSS: 0.018 (76.7th percentile) — read the EPSS interpretation.
Affected products
- Kaseya Kserver — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (technical-description, exploit, third-party-advisory)
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2013-10034?
- CVE-2013-10034 is a vulnerability in Kaseya Kserver, classified under Unrestricted Upload of File with Dangerous Type. Published 2025-07-31.
- Is CVE-2013-10034 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.