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CVE Record

CVE-2018-1000837: UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins...

UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can result in Disclosure of confidential data, denial of service, SSRF, port scanning. This attack appear to be exploitable via malicious plugins.xml file.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

UML Designer 8.0.0 and earlier reportedly parsed plugin XML unsafely. A malicious plugins.xml file could make the application expose confidential data or trigger network-side effects such as SSRF, port scanning, or denial of service. Public sources do not show a CVSS score, named patch, or confirmed active exploitation.

Executive priority

Prioritize environments where UML Designer is used with external plugins or untrusted project materials. This is not currently supported by evidence of active exploitation, but the potential impacts include data exposure and internal network interaction.

Technical view

The CVE describes an XML External Entity issue in UML Designer's plugin XML parser, reachable through a malicious plugins.xml file. Reported impacts are information disclosure, denial of service, SSRF, and port scanning. The provided record lacks precise affected CPEs, CWE mapping, CVSS data, and remediation details.

Likely exposure

Exposure is most likely where UML Designer version 8.0.0 or earlier is installed and users import or load third-party plugin metadata. Risk is lower for environments that do not use UML Designer or only load trusted plugins.

Exploitation context

The source bundle indicates exploitation requires a malicious plugins.xml file. There is no KEV listing and no provided source confirms active exploitation in the wild. Evidence is limited to public vulnerability references and the reported GitHub issue/blog references.

Researcher notes

The record is sparse: affected product metadata is listed as n/a despite the description naming UML Designer <= 8.0.0. No CVSS, CWE, patch version, or KEV evidence is provided. Validate against the referenced issue and vendor guidance before making broad remediation claims.

Mitigation direction

  • Inventory UML Designer installations and identify versions 8.0.0 or earlier.
  • Do not load untrusted plugin bundles or plugins.xml files.
  • Check Obeo/UML Designer guidance for a fixed version or official workaround.
  • Restrict outbound network access from affected workstations where practical.
  • Treat plugin metadata files as untrusted input during reviews.

Validation and detection

  • Confirm whether UML Designer is installed on developer or modeling workstations.
  • Record installed versions and compare against the <= 8.0.0 affected statement.
  • Review plugin sources and remove untrusted or unnecessary plugins.
  • Check security controls for unusual outbound requests from affected hosts.
  • Monitor vendor issue references for remediation confirmation.
Prepared
Confidence
medium
Sources
4

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

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description · low confidence lookup

Cloud metadata behavior lookup

The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2018-1000837 mapping review

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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
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

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.