What’s Vulnerable › Vulnerabilities

CVE-2020-11707

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-12 · updated 2026-06-17
• Weakness: CWE-863

Description

An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.

Affected products

• Provideserver Provide Ftp Server: through 13.1

References

• https://github.com/belong2yourself/vulnerabilities/tree/master/ProVide/Sandbox%20Escape%20via%20Symlink%20or%20Junction
• https://www.provideserver.com/security/
• https://github.com/belong2yourself/vulnerabilities/tree/master/ProVide/Sandbox%20Escape%20via%20Symlink%20or%20Junction
• https://www.provideserver.com/security/

Get alerted when CVE-2020-11707 or the next vulnerability affects your stack