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Public proof of conceptFix available

CVE-2022-39258

A public proof of concept exists; no exploitation attested.

  • Published2022-09-27
  • WeaknessCWE-200 · CWE-451 · CWE-601

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

mailcow is a mailserver suite. A vulnerability innversions prior to 2022-09 allows an attacker to craft a custom Swagger API template to spoof Authorize links. This could redirect a victim to an attacker controller place to steal Swagger authorization credentials or create a phishing page to steal other information. The issue has been fixed with the 2022-09 mailcow Mootember Update. As a workaround, one may delete the Swapper API Documentation from their e-mail server.

Timeline

dates in UTC
  1. 2022-09-2715:15CVE publishedNVD

Versions per branch

NVD
Mailcow mailcow\
BranchAffectedFixed in
—= _dockerizedno fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • mailcow-dockerized
    Affected
    • = < 2022-09no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-09-27

Fix

Advisories and patches

Detection

read 2026-11-09 09:28 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2025-04-22
  • CNACVSS 3.18.1known since 2026-10-23
  • NVDCVSS 3.18.2read 2026-10-23
  • CNAweakness (CWE)CWE-200, CWE-451known since 2026-10-23
  • NVDweakness (CWE)CWE-601read 2026-10-23
  • FIRST EPSSEPSS score1.8 %2026-11-08
  • ProjectDiscoverydetectionread 2026-11-09

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Published
2022-09-27
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2022-39258?

mailcow is a mailserver suite. A vulnerability innversions prior to 2022-09 allows an attacker to craft a custom Swagger API template to spoof Authorize links. This could redirect a victim to an attacker controller place to steal Swagger authorization credentials or create a phishing page to steal other information. The issue has been fixed with the 2022-09 mailcow Mootember Update. As a workaround, one may delete the Swapper API Documentation from their e-mail server.

Is CVE-2022-39258 actively exploited?

A proof-of-concept exploit exists for CVE-2022-39258, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2022-39258?

CVE-2022-39258 has a CVSS v3 base score of 8.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

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