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Vulnerability record · CVE-2020-5196 · published 14 January 2020

CVE-2020-5196: Cerberusftp ftp server incorrect default permissions vulnerability

Cerberusftp · Ftp Server

Cerberus FTP Server Enterprise Edition prior to versions 11.0.3 and 10.0.18 allows an authenticated attacker to create files, display hidden files, list directories, and list files without the permission to zip and download (or unzip and upload) files. There are multiple ways to bypass certain permissions by utilizing the zip and unzip features. As a result, users without permission can see files, folders, and hidden files, and can create directories without permission.

8.1 CVSS 3.1 High EPSS 1.2% · top 33.0% CWE-276 · Incorrect default permissions
8.1CVSS 3.1 base score, v2 5.5
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Cerberus FTP Server Enterprise Edition prior to versions 11.0.3 and 10.0.18 allows an authenticated attacker to create files, display hidden files, list directories, and list files without the permission to zip and download (or unzip and upload) files. There are multiple ways to bypass certain permissions by utilizing the zip and unzip features. As a result, users without permission can see files, folders, and hidden files, and can create directories without permission.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.cerberusftp.com/hc/en-us/community/topics/360000164199-Announcements Release NotesVendor Advisory
https://www.cerberusftp.com/zip-unzip-permission-bypass-vulnerability-fixed-in-cerberus-ftp-server-versions-11-0-3-and-1 Vendor Advisory
https://www.doyler.net/security-not-included/cerberus-ftp-vulnerabilities ExploitThird Party Advisory
https://support.cerberusftp.com/hc/en-us/community/topics/360000164199-Announcements Release NotesVendor Advisory
https://www.cerberusftp.com/zip-unzip-permission-bypass-vulnerability-fixed-in-cerberus-ftp-server-versions-11-0-3-and-1 Vendor Advisory
https://www.doyler.net/security-not-included/cerberus-ftp-vulnerabilities ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2017-6367Cerberusftp ftp server improper input validation vulnerabilityIn Cerberus FTP Server 8.0.10.1, a crafted HTTP request causes the Windows service to crash. The attack methodology involves a long Host header and a…EPSS 8.6%7.3CVE-2026-6265Cerberusftp ftp server vulnerabilityInsecure preserved inherited permissions vulnerability in Cerberus FTP Server on Windows allows Privilege Escalation.This issue has been resolved in …EPSS 0.37%6.8CVE-2012-2999Cerberusftp ftp server cross-site request forgery vulnerabilityMultiple cross-site request forgery (CSRF) vulnerabilities in the web interface in Cerberus FTP Server before 5.0.5.0 allow remote attackers to hijac…EPSS 1.2%6.1CVE-2019-25046Cerberusftp ftp server cross-site scripting vulnerabilityThe Web Client in Cerberus FTP Server Enterprise before 10.0.19 and 11.x before 11.0.4 allows XSS via an SVG document.EPSS 1.8%6.1CVE-2020-5195Cerberusftp ftp server cross-site scripting vulnerabilityReflected XSS through an IMG element in Cerberus FTP Server prior to versions 11.0.1 and 10.0.17 allows a remote attacker to execute arbitrary JavaSc…EPSS 1.2%5.4CVE-2020-5194Cerberusftp ftp server insecure direct object reference vulnerabilityThe zip API endpoint in Cerberus FTP Server 8 allows an authenticated attacker without zip permission to use the zip functionality via an unrestricte…EPSS 0.68%5.0CVE-2012-5301Cerberusftp ftp server vulnerabilityThe default configuration of Cerberus FTP Server before 5.0.4.0 supports the DES cipher for SSH sessions, which makes it easier for remote attackers …EPSS 1.2%4.3CVE-2012-6339Cerberusftp ftp server cross-site scripting vulnerabilityMultiple cross-site scripting (XSS) vulnerabilities in the administrative web interface in Cerberus FTP Server before 5.0.6.0 allow (1) remote attack…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2020-5196), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.