CVE-2022-39258Public exploitNetwork attack vector

Credential theft via attacker-controlled Swagger templates

Published Sep 27, 2022 · Updated Apr 22, 2025

UI misrepresentation in mailcow: dockerized before 2022-09 allows remote attackers to present phishing content through Swagger UI. Swagger UI accepts a configUrl pointing to an attacker-hosted API template and renders its custom HTML, including spoofed Authorize links. Exploitation requires a victim to open the crafted link; submitted secrets can be sent to the attacker, but no server-side compromise is reported.

CVSS severityUnavailable
Unscored
EPSS probability1.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

UI misrepresentation in mailcow: dockerized before 2022-09 allows remote attackers to present phishing content through Swagger UI. Swagger UI accepts a configUrl pointing to an attacker-hosted API template and renders its custom HTML, including spoofed Authorize links. Exploitation requires a victim to open the crafted link; submitted secrets can be sent to the attacker, but no server-side compromise is reported.

The record

CVE
CVE-2022-39258
Published
Sep 27, 2022
Updated
Apr 22, 2025
Vendor
mailcow
Product
mailcow: dockerized
Classifications
CWE-451, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2022-09

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

mailcow · mailcow: dockerizedversion=< 2022-09

Published CVSS scores

No CVSS assessment is available in this record.

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-451User Interface (UI) Misrepresentation of Critical Information
T1204.001User Execution: Malicious Link

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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