Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2020-27735

30
FAUCET Score

CVE-2020-27735 describes a Cross-Site Scripting (XSS) vulnerability in Wing FTP Server version 6.4.4. An attacker can inject arbitrary HTML and JavaScript into help pages via a crafted link, leading to client-side code execution within a sandboxed iframe. This medium-severity vulnerability (CVSS 6.1) requires user interaction and could result in limited impact to confidentiality and integrity. While no active exploitation or public exploit code (Metasploit, ExploitDB) is reported, a Nuclei template exists, and there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.4.4CPE matchmatch criteria
cpe:2.3:a:wftpserver:wing_ftp_server:6.4.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.79%
Probability of exploitation in next 30 days
EPSS Percentile
92.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Nuclei: CVE-2020-27735 · Jul 27, 2021
This CVE's current EPSS score of 0.0579 is in the 97th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wshenk.blogspot.com / 2021/01/xss-in-wing-ftps-web-interface-cve-2020.html
ExploitThird Party Advisory
wftpserver.com / serverhistory.htm
Release NotesVendor Advisory