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Vulnerabilities

Vulnerability · CVE-2025-34299

monstaftp monsta_ftp Unrestricted Upload of File with Dangerous Type

Published Nov 26, 2025 · catalog updated Nov 26, 2025 · monstaftp monsta_ftp Unrestricted Upload

Patch now

CVE-2025-34299 is in the CISA known-exploited catalog. Confirm monstaftp monsta_ftp Unrestricted Upload against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (monstaftp monsta_ftp Unrestricted Upload).
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
72.68%
Remediation
Remediation guidance
Affected products
stated monsta_ftp · vendor monstaftp monsta_ftp

Monsta FTP versions 2.11 and earlier contain a vulnerability that allows unauthenticated arbitrary file uploads. This flaw enables attackers to execute arbitrary code by uploading a specially crafted file from a malicious (S)FTP server. VulnCheck canary evidence. Initial-access exploit intelligence.

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.

  • stated monsta_ftp<= 2.11
  • vendor monstaftp monsta_ftpversion unspecified

How to fix CVE-2025-34299

What to do

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

Should you patch?

CVE-2025-34299 is in the CISA known-exploited catalog. Confirm monstaftp monsta_ftp Unrestricted Upload against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with <= 2.11. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 72.68%. The CISA KEV listing is the exploitation evidence. 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.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 26, 2025 · VulnCheck KEV

    Detected

    Monsta FTP versions 2.11 and earlier contain a vulnerability that allows unauthenticated arbitrary file uploads. This flaw enables attackers to execute arbitrary code by uploading a specially crafted file from a malicious (S)FTP server. VulnCheck canary evidence. Initial-access exploit intelligence.

  2. Nov 26, 2025 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2025-34299

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-34299

    30-day exploitation probability 72.7%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2025-34299

    Monsta FTP versions 2.11 and earlier contain a vulnerability that allows unauthenticated arbitrary file uploads. This flaw enables attackers to execute arbitrary code by uploading a specially crafted file from a malicious (S)FTP server.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.