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Vulnerabilities

Vulnerability · CVE-2013-10034

An unrestricted file upload vulnerability exists in Kaseya KServer versions prior to 6.3.0.2.

Published Jul 31, 2025 · catalog updated May 15, 2026 · Kaseya KServer

Check if you run it

No confirmed exploitation is on record for CVE-2013-10034. EPSS is 2.86%. Act only if a listed version of Kaseya KServer is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.86%
Remediation
Version ranges on file
Affected products
vendor Kaseya KServer 0 <6.3.0.2

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

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Kaseya KServer 0 <6.3.0.20 <6.3.0.2

How to fix CVE-2013-10034

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2013-10034. EPSS is 2.86%. Act only if a listed version of Kaseya KServer is installed.

Which versions are affected?

Compare what you have installed with Kaseya KServer 0 <6.3.0.2 0 <6.3.0.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 2.86%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 31, 2025 · EUVD

    Detected

    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, w

  2. May 15, 2026 · EUVD

    Updated

    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, w

Sources

  • CVE.orgVulnerability recordCVE-2013-10034

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2013-10034

    30-day exploitation probability 2.86%

    first.org
  • EUVDVulnerability recordEUVD-2013-7256

    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 au

    euvd.enisa.europa.eu
  • Metasploit ModulesPublic exploit moduleexploit_windows/http/kaseya_uploadimage_file_upload

    Public module reference (excellent). Module source is not copied into this catalog.

    rapid7.com

References

Freshness

Last verified in this catalog Oct 24, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.