Description · from the CVE record

Improper input handling in the 'Host Header' allows an unauthenticated attacker to store a payload in web application logs. When an Administrator views the logs using the application's standard functionality, it enables the execution of the payload, resulting in Stored XSS or 'Cross-Site Scripting'.

Affected

ProductAffectedFixed inSource
CrushFTP10.0.0 – < 10.8.210.8.2CNA
CrushFTP11.0.0 – < 11.2.111.2.1CNA

Scores by source

ENISA (CNA)9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refcrushftp.com/crush11wiki/Wiki.jsp?page=Update