What’s Vulnerable › Vulnerabilities

CVE-2021-27103: Accellion FTA Server-Side Request Forgery (SSRF) Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 11.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-16 · updated 2026-06-17
• Weakness: CWE-918

Description

Accellion FTA 9_12_411 and earlier is affected by SSRF via a crafted POST request to wmProgressstat.html. The fixed version is FTA_9_12_416 and later.

Affected products

• Accellion Fta: before 9_12_416 — fixed in 9_12_416

How to fix

Upgrade to a fixed version: Accellion Fta 9_12_416. Check the vendor advisory for mitigations.

References

• https://github.com/accellion/CVEs/blob/main/CVE-2021-27103.txt
• https://www.accellion.com/products/fta/
• https://github.com/accellion/CVEs/blob/main/CVE-2021-27103.txt
• https://www.accellion.com/products/fta/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27103

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