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CVE-2018-1000835: KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser t...

KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

KeePassDX builds up to 2.5.0.0beta17 could mishandle specially crafted KeePass database files. If an affected app opens such a file, XML parsing behavior may expose confidential data, cause denial of service, or trigger server-side request forgery style network access.

Executive priority

Treat this as a targeted hygiene issue, not a confirmed active incident. Prioritize finding and retiring affected KeePassDX beta-era installations because the product handles sensitive password database files and the documented impact includes data disclosure.

Technical view

CVE-2018-1000835 is an XML External Entity vulnerability in the KeePassDX KDBX file parser affecting version <= 2.5.0.0beta17. The CVE description lists potential outcomes as confidential data disclosure, denial of service, SSRF, and port scanning. The supplied data has no CVSS score, CWE mapping, or confirmed patched version.

Likely exposure

Exposure appears limited to environments still using KeePassDX version 2.5.0.0beta17 or earlier, especially where users open KDBX files from untrusted sources. Current exposure cannot be determined from the supplied sources because affected CPEs and remediation details are incomplete.

Exploitation context

The CVE is public and includes a GitHub issue and researcher blog reference. The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. Practical risk depends on whether an affected KeePassDX version parses a malicious KDBX file.

Researcher notes

The supplied record lacks CVSS, CWE, CPE, and explicit fix data. Analysis should stay anchored to KeePassDX <= 2.5.0.0beta17 and the KDBX parser. Do not assume other KeePass clients are affected without separate evidence.

Mitigation direction

  • Check vendor guidance and the linked GitHub issue for the fixed or recommended KeePassDX version.
  • Remove or upgrade KeePassDX installations at or below 2.5.0.0beta17 where found.
  • Avoid opening KeePass database files from untrusted or unexpected sources.
  • Restrict app network access where feasible until affected versions are retired.

Validation and detection

  • Inventory mobile devices and app stores for KeePassDX versions <= 2.5.0.0beta17.
  • Confirm whether users receive or import KDBX files from external parties.
  • Review endpoint or mobile management records for outdated KeePassDX installations.
  • Track the referenced GitHub issue for remediation status and affected-version clarification.
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

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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-2018-1000835 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.