CVE-2020-5194Public exploitNetwork attack vector

Restricted file disclosure via unchecked ZIP endpoint

Published Jan 14, 2020 · Updated Aug 4, 2024

Improper access control in Cerberus FTP Server 8 allows remote authenticated users to download restricted files through the Web Client. The file/ajax_download_zip/zip_name endpoint accepts a caller-controlled ID and creates a ZIP archive without checking the caller's ZIP permission or file visibility. The caller must have an authenticated Web Client session and download permission; successful requests disclose file contents within the account's jailed root.

CVSS severity5.4
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Cerberus FTP Server 8 allows remote authenticated users to download restricted files through the Web Client. The file/ajax_download_zip/zip_name endpoint accepts a caller-controlled ID and creates a ZIP archive without checking the caller's ZIP permission or file visibility. The caller must have an authenticated Web Client session and download permission; successful requests disclose file contents within the account's jailed root.

The record

CVE
CVE-2020-5194
Published
Jan 14, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 14, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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