ACTIVELY EXPLOITED

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

Facts
VendorAccellion
ProductFTA
Actively exploitedYes
Added to CISA KEV3 Nov 2021
CISA federal deadline17 Nov 2021
Ransomware useKnown
Weakness (CWE)CWE-918

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

Accellion FTA contains a server-side request forgery (SSRF) vulnerability exploited via a crafted POST request to wmProgressstat.html.

SOURCES

Other Accellion flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.