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CVE Record

CVE-2023-40985: An issue was discovered in Webmin 2.100.

An issue was discovered in Webmin 2.100. The File Manager functionality allows an attacker to exploit a Cross-Site Scripting (XSS) vulnerability. By providing a malicious payload, an attacker can inject arbitrary code, which is then executed within the context of the victim's browser when any file is searched/replaced.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2023-40985 is a cross-site scripting issue in Webmin 2.100 File Manager. A malicious value can execute script in a victim’s browser during file search/replace. For administrators, this matters because Webmin is a privileged management interface, but the provided sources do not confirm active exploitation or a vendor fix.

Executive priority

Treat as a timely administrative-interface risk, not an emergency based on current evidence. Prioritize identifying Webmin 2.100, reducing exposure, and tracking vendor remediation. Escalate if Webmin is internet-facing or used by multiple administrators.

Technical view

The CVE describes XSS in Webmin 2.100 File Manager. An attacker-supplied payload can be injected and executed in the victim browser context when files are searched or replaced. Sources do not provide CVSS, CWE, authentication requirements, exploit prevalence, or remediation version details.

Likely exposure

Organizations running Webmin 2.100 with File Manager available are the relevant population. Risk is higher where Webmin is reachable by many users or exposed beyond trusted administrative networks. The sources do not identify other affected versions.

Exploitation context

The described attack requires malicious input to reach the File Manager search/replace workflow and be rendered in a victim browser. The provided source bundle does not show CISA KEV listing, active exploitation, or confirmed public weaponization beyond the referenced disclosure.

Researcher notes

Evidence is sparse. The CVE and referenced GitHub page identify Webmin 2.100 File Manager XSS during search/replace, but omit CVSS, CWE, prerequisites, affected-version range, and fixed-version data. Avoid assuming authentication state or broader version impact without vendor confirmation.

Mitigation direction

  • Check official Webmin guidance for fixed versions or vendor-recommended mitigations.
  • Restrict Webmin access to trusted administrative networks and users.
  • Review whether Webmin 2.100 is deployed and prioritize replacement if vendor guidance confirms a fix.
  • Limit File Manager use with untrusted file names, paths, or content until remediated.

Validation and detection

  • Inventory Webmin deployments and identify any running version 2.100.
  • Confirm whether File Manager is enabled and used by administrators.
  • Review Webmin access controls and network exposure.
  • Monitor vendor advisories and the CVE record for updated remediation details.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2023-40985 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
2ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.