CVE-2024-41959Network attack vector

Stored XSS via unescaped API-log URI

Published Aug 5, 2024 · Updated Aug 5, 2024

Stored XSS in mailcow: dockerized before 2024-07 allows remote attackers to run scripts when an administrator views API logs. The URI column renderer in data/web/js/site/debug.js inserts logged URI data into the API-log table without calling escapeHtml. Exploitation requires an unauthenticated request that plants a crafted URI and a subsequent privileged log-page view, exposing that browser session to data theft or unauthorized actions.

CVSS severity7.6
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in mailcow: dockerized before 2024-07 allows remote attackers to run scripts when an administrator views API logs. The URI column renderer in data/web/js/site/debug.js inserts logged URI data into the API-log table without calling escapeHtml. Exploitation requires an unauthenticated request that plants a crafted URI and a subsequent privileged log-page view, exposing that browser session to data theft or unauthorized actions.

The record

CVE
CVE-2024-41959
Published
Aug 5, 2024
Updated
Aug 5, 2024
Vendor
mailcow
Product
mailcow: dockerized
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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?

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

  1. Affected versionversion=< 2024-07

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

mailcow · mailcow: dockerizedversion=< 2024-07

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
7.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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