CVE-2021-27103 is a critical Server-Side Request Forgery (SSRF) vulnerability affecting Accellion FTA versions 9_12_411 and earlier, allowing attackers to craft a POST request to wmProgressstat.html. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. This vulnerability is actively exploited in the wild, notably by ransomware campaigns, and has garnered significant community discussion and media coverage, despite the lack of public exploit code on platforms like Metasploit or ExploitDB. Organizations using affected Accellion FTA versions should upgrade to FTA_9_12_416 or later immediately to mitigate this high-risk threat.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 9_12_416CPE matchmatch criteria | cpe:2.3:a:accellion:fta:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.