{"id":"CVE-2026-60105","state":"PUBLISHED","title":"Monsta FTP < 2.14.5 SSRF via IPv4-Mapped IPv6 Address Bypass","description":"Monsta FTP before 2.14.5 contains a server-side request forgery vulnerability in the fetchRemoteFile action caused by an incomplete IP blocklist check in the isBlockedIP() function, which fails to detect embedded IPv4 addresses within IPv4-mapped IPv6 addresses. An unauthenticated attacker can obtain a CSRF token from the public getSystemVars endpoint and submit a fetchRemoteFile request with a source URL resolving to an IPv4-mapped address, causing the server to issue HTTP requests to internal services and write responses to an attacker-controlled FTP destination, enabling retrieval of cloud instance metadata credentials.","publishedAt":"2026-07-08T21:02:37.204Z","updatedAt":"2026-07-14T22:03:32.053Z","severity":{"score":7.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["Monsta Limited of New Zealand Monsta FTP"],"affected":[{"vendor":"Monsta Limited of New Zealand","product":"Monsta FTP","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"2.14.5","versionType":"semver"}]}],"references":["https://www.vulncheck.com/blog/monsta-ftp-ssrf-ipv6-blocklist-bypass","https://www.monstaftp.com/notes/","https://www.vulncheck.com/advisories/monsta-ftp-ssrf-via-ipv4-mapped-ipv6-address-bypass"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/60xxx/CVE-2026-60105.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-60105","state":"PUBLISHED","datePublished":"2026-07-08T21:02:37.204Z","dateUpdated":"2026-07-14T22:03:32.053Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-07-08T13:27:53.030Z"},"containers":{"cna":{"title":"Monsta FTP < 2.14.5 SSRF via IPv4-Mapped IPv6 Address Bypass","descriptions":[{"lang":"en","value":"Monsta FTP before 2.14.5 contains a server-side request forgery vulnerability in the fetchRemoteFile action caused by an incomplete IP blocklist check in the isBlockedIP() function, which fails to detect embedded IPv4 addresses within IPv4-mapped IPv6 addresses. 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