CVE-2026-60105
highpriority · track · 1EPSS 0.015 · 74 %ileEUEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://www.monstaftp.com/notes/cnnvd
- https://www.vulncheck.com/advisories/monsta-ftp-ssrf-via-ipv4-mapped-ipv6-address-bypasscnnvd
- https://www.monstaftp.com/notes/enisa_euvd
- https://www.vulncheck.com/advisories/monsta-ftp-ssrf-via-ipv4-mapped-ipv6-address-bypassenisa_euvd
- https://www.vulncheck.com/blog/monsta-ftp-ssrf-ipv6-blocklist-bypassenisa_euvd
- https://www.monstaftp.com/notes/nvd
- https://www.vulncheck.com/advisories/monsta-ftp-ssrf-via-ipv4-mapped-ipv6-address-bypassnvd
- https://www.vulncheck.com/blog/monsta-ftp-ssrf-ipv6-blocklist-bypassnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan