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CVE Record

CVE-2019-15107: An issue was discovered in Webmin <=1.920.

An issue was discovered in Webmin <=1.920. The parameter old in password_change.cgi contains a command injection vulnerability.

CriticalCVSS 9.8Known exploitedUpdated
Glexia's TakeSource changedcritical

Security readout for executives and security teams

Plain-English summary

Webmin versions through 1.920 contain a remotely reachable command-injection flaw in the password-change function. An unauthenticated attacker could potentially take full control of an exposed system, including stealing data, changing configurations, or disrupting services. CISA lists the vulnerability as known exploited, making exposed installations an urgent business risk.

Executive priority

Treat as an immediate remediation and compromise-assessment priority for internet-exposed systems. Its unauthenticated remote impact, critical CVSS score, and CISA known-exploited status create a credible risk of complete server compromise. Internally restricted instances remain important but can follow exposed systems in prioritization.

Technical view

The old parameter in Webmin's password_change.cgi is vulnerable to OS command injection (CWE-78). CVSS 3.1 rates it 9.8: network-accessible, low complexity, no privileges or user interaction required, with high confidentiality, integrity, and availability impact. The supplied description identifies Webmin versions through 1.920 as affected.

Likely exposure

Highest exposure exists where Webmin 1.920 or earlier is installed and its password-change interface is network reachable, particularly from the internet. The supplied structured affected-product metadata is incomplete, but the CVE description explicitly identifies Webmin through version 1.920.

Exploitation context

CISA's Known Exploited Vulnerabilities status supports active exploitation in the wild. Public Exploit-DB and AttackerKB references also indicate that exploitation information is publicly available. The bundle does not establish current campaign scope, targeted sectors, or exploitation frequency.

Researcher notes

The source bundle clearly identifies command injection in password_change.cgi's old parameter and versions through 1.920. CVSS indicates unauthenticated remote attackability. However, supplied affected-product fields are marked n/a, and no vendor advisory, corrected version, configuration prerequisite, detection signature, or campaign detail is included. Validate remediation specifics against current official vendor guidance.

Mitigation direction

  • Identify and prioritize every Webmin installation running version 1.920 or earlier.
  • Restrict Webmin access to trusted administrative networks while remediation is pending.
  • Check official Webmin guidance for the corrected release and approved remediation.
  • Upgrade affected installations according to vendor guidance, then confirm service health.
  • Investigate exposed affected systems for signs of compromise.

Validation and detection

  • Inventory Webmin versions and record whether each management interface is internet reachable.
  • Confirm no installation remains on version 1.920 or earlier after remediation.
  • Verify network controls limit Webmin access to authorized administrative sources.
  • Review relevant Webmin, web server, process, and security logs for suspicious activity.
  • Use non-destructive authenticated checks to confirm the deployed version and configuration.
Prepared
Confidence
high
Sources
5

The source record changed after analysis: Material source record changed after analysis.

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.

cwe · medium confidence lookup

CWE-78: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2019-15107 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
Yes
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

1CVSS vectors
4Timeline events
2ADP providers
4Source links

CISA KEV status

Status
Known exploited
Source
CISA-ADP
Date added
KEV reference

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: activeAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2019-15107Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

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. Added to KEVCISA-ADP

    CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.

  4. CVE updatedCVE Program

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

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvcother:kev

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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

CWE-78 · source CWE mapping

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.