CVE-2023-38307Public exploitNetwork attack vector

Stored XSS via unencoded real-name rendering

Published Jul 31, 2023 · Updated Oct 22, 2024

Stored XSS in Webmin 2.021 Users and Groups allows remote authenticated users to execute script in another user’s browser. The user-deletion view renders the stored real-name value as active HTML instead of neutralizing it. Exploitation requires permission to create an account and a second user to attempt deletion, exposing that user’s Webmin-session data and actions.

CVSS severity5.4
Medium
EPSS probability0.47%
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 Webmin 2.021 Users and Groups allows remote authenticated users to execute script in another user’s browser. The user-deletion view renders the stored real-name value as active HTML instead of neutralizing it. Exploitation requires permission to create an account and a second user to attempt deletion, exposing that user’s Webmin-session data and actions.

The record

CVE
CVE-2023-38307
Published
Jul 31, 2023
Updated
Oct 22, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 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

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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