Monsta FTP <= 2.11 Unauthenticated Arbitrary File Upload
100Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actcvss 9.3epss 73%
from disclosure to weapon3 days
Published on NVDNov 7
1st PoC+3d
metasploitNov 7
VulnCheck+19d
exploitation probability
73%top 1% of all CVEs
observed exploitation
yesVulnCheck
7 public exploit(s)
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Monsta Limited of New Zealand · Monsta FTPpublic PoCs found — 7
githubgithub.com/Chocapikk/CVE-2025-34299★ 4githubgithub.com/rxerium/CVE-2025-34299★ 0githubgithub.com/KrE80r/CVE-2025-34299-lab★ 0cve_referencelabs.watchtowr.com/whats-that-coming-over-the-hill-monsta-ftp-remote-code-execution-cve-2025-34299/unverifiedvulncheckvulncheck.com/xdb/bee3418c74a0unverifiedvulncheckvulncheck.com/xdb/3e3b6329e753unverifiedvulncheckvulncheck.com/xdb/945d96870d3funverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.