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Vulnerabilities

Vulnerability · CVE-2023-27753

An arbitrary file upload vulnerability in MK-Auth 23.01K4.9 allows attackers to execute arbitrary code via uploading a crafted PHP file.

Published May 12, 2026 · catalog updated Jun 17, 2026 · An arbitrary file upload

Check if you run it

No confirmed exploitation is on record for CVE-2023-27753. EPSS is 0.33%. Act only if a listed version of An arbitrary file upload is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (An arbitrary file upload).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.33%
Remediation
Not established
Affected products
See sources for product scope

An arbitrary file upload vulnerability in MK-Auth 23.01K4.9 allows attackers to execute arbitrary code via uploading a crafted PHP file.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2023-27753

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-2023-27753. EPSS is 0.33%. Act only if a listed version of An arbitrary file upload is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-434: Unrestricted Upload of File with Dangerous Type. EPSS 0.33%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

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

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2026 · NIST NVD

    Detected

    An arbitrary file upload vulnerability in MK-Auth 23.01K4.9 allows attackers to execute arbitrary code via uploading a crafted PHP file.

  2. Jun 17, 2026 · NIST NVD

    Updated

    An arbitrary file upload vulnerability in MK-Auth 23.01K4.9 allows attackers to execute arbitrary code via uploading a crafted PHP file.

Sources

  • CVE.orgVulnerability recordCVE-2023-27753

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-27753

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2023-27753

    An arbitrary file upload vulnerability in MK-Auth 23.01K4.9 allows attackers to execute arbitrary code via uploading a crafted PHP file.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.