CVE-2023-38306Public exploitNetwork attack vector

Cross-site scripting via archive extraction bypass

Published Jul 31, 2023 · Updated Oct 22, 2024

Cross-site scripting in Webmin 2.021 file upload allows remote attackers to execute script in a user's browser via an uploaded archive. Archive extraction places a prohibited SVG file into the upload area without applying the direct-upload file-type restriction, allowing its script to render. Exploitation requires a user to upload and extract the crafted archive, and successful script execution can access or alter data available to that browser session.

CVSS severity6.1
Medium
EPSS probability0.60%
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 Webmin 2.021 file upload allows remote attackers to execute script in a user's browser via an uploaded archive. Archive extraction places a prohibited SVG file into the upload area without applying the direct-upload file-type restriction, allowing its script to render. Exploitation requires a user to upload and extract the crafted archive, and successful script execution can access or alter data available to that browser session.

The record

CVE
CVE-2023-38306
Published
Jul 31, 2023
Updated
Oct 22, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1NIST NVDCVSS:3.1/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 exploitPublished

Weakness, pattern, technique

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

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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