Crushftp
CVE-2025-63419
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.06%. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAIv1 – Mar 28, 2026
Cross Site Scripting (XSS) vulnerability in CrushFTP 11.3.6_48. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Cross Site Scripting (XSS) vulnerability in CrushFTP 11.3.6_48. The Web-Based Server has a feature where users can share files, the feature reflects the filename to an emailbody field with no sanitations leading to HTML Injection. Affected products include: Crushftp.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Cross Site Scripting (XSS) vulnerability in CrushFTP 11.3.6_48. The Web-Based Server has a feature where users can share files, the feature reflects the filename to an emailbody field with no sanitations leading to HTML Injection.
Executive ViewAI
CVE-2025-63419 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
CrushFTP 10 and 11 contain an authentication bypass allowing takeover of the crushadmin account through a race condition
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remot
CrushFTP prior to 10.5.1 is vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes
A server side template injection vulnerability in CrushFTP in all versions before 10.7.1 and 11.1.0 on all platforms all
CrushFTP 8.x before 8.2.0 has a serialization vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is r
CrushFTP 10 before 10.8.3 and 11 before 11.2.3 mishandles password reset, leading to account takeover. Rated critical se
CrushFTP 9.x and 10.x through 10.8.4 and 11.x through 11.3.1 allows directory traversal via the /WebInterface/function/
CrushFTP 9.x and 10.x through 10.8.4 and 11.x through 11.3.1 allows SSRF via the host and port parameters in a command=t
CrushFTP before 7.8.0 and 8.x before 8.2.0 has an HTTP header vulnerability. Rated medium severity (CVSS 6.1), this vuln
CrushFTP before 7.8.0 and 8.x before 8.2.0 has XSS. Rated medium severity (CVSS 6.1), this vulnerability is remotely exp
CrushFTP before 7.8.0 and 8.x before 8.2.0 has a redirect vulnerability. Rated medium severity (CVSS 6.1), this vulnerab
Cross Site Scripting (XSS) vulnerability in CrushFTP v.10.6.0 and v.10.5.5 allows an attacker to execute arbitrary code
GitHub PoC
Exploit-DB