CVE-2024-36453Network attack vector

Browser script execution via crafted login request

Published Jul 10, 2024 · Updated Nov 6, 2024

Cross-site scripting in session_login.cgi in Webmin before 1.970 and Usermin before 1.820 allows remote attackers to run script in a user's browser. The JPCERT/CC advisory identifies the login CGI but does not disclose which request field is reflected or the missing output-encoding operation. A user must open an attacker-crafted request; script execution can alter the displayed page or expose credentials in that browser context.

CVSS severity6.1
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in session_login.cgi in Webmin before 1.970 and Usermin before 1.820 allows remote attackers to run script in a user's browser. The JPCERT/CC advisory identifies the login CGI but does not disclose which request field is reflected or the missing output-encoding operation. A user must open an attacker-crafted request; script execution can alter the displayed page or expose credentials in that browser context.

The record

CVE
CVE-2024-36453
Published
Jul 10, 2024
Updated
Nov 6, 2024
Vendor
Webmin
Product
Usermin
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 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=versions prior to 1.820

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Webmin · Userminversion=versions prior to 1.820
Webmin · Webminversion=versions prior to 1.970

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1JPCERT/CC and IPACVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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