CVE-2025-63420: CrushFTP11 · Cross-site Scripting
Source CVE Database V5
Not known to be exploited · CVSS 4.1 Medium.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 7 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
- Immediately upgrade CrushFTP to version 11.3.7_57 or later once the patch is available to remediate the vulnerability.
- Until a patch is applied, restrict access to the CrushFTP Admin Panel to trusted administrators only and enforce strict access controls and network segmentation to limit exposure.
- Implement multi-factor authentication (MFA) for all administrative accounts to reduce the risk of compromised credentials being exploited.
- Regularly audit and monitor admin panel activity logs for unusual or unauthorized actions that could indicate exploitation attempts.
- Educate administrators about the risks of interacting with untrusted input or reports and encourage cautious behavior when reviewing report data.
- Employ web application firewalls (WAF) with custom rules to detect and block suspicious HTML or script injection attempts targeting the admin interface.
- Conduct periodic security assessments and penetration testing focused on the admin panel to identify and remediate similar injection flaws proactively.
Description
CrushFTP11 before 11.3.7_57 is vulnerable to stored HTML injection in the CrushFTP Admin Panel (Reports / "Who Created Folder"), enabling persistent HTML execution in admin sessions.