CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

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

criticalknown exploitedCVE-2021-27103
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Accellion FTA contains a server-side request forgery (SSRF) vulnerability exploited via a crafted POST request to wmProgressstat.html.

CSIRTS triage

vendor: Accellionproduct: FTAServer-side request forgery
What
A server-side request forgery (SSRF) vulnerability can be exploited via a crafted POST request.
Who is affected
Users of Accellion FTA.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest version of Accellion FTA.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch FTA

Get an email when a new FTA advisory drops — max one per day, one-click unsubscribe.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-27103

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-27103coverage & exploitation statusNVD · CVE.org

More from CISA Known Exploited Vulnerabilities