CVE-2026-38429

Published May 5, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
OpenCMS v20 and before is vulnerable to XML External Entity (XXE) in the Admin Import DB feature due to insecure XML parsing of user supplied .zip files containing a manifest.xml.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title XML External Entity (XXE) Vulnerability in OpenCMS Admin Import DB Feature
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title XML External Entity (XXE) Vulnerability in OpenCMS Admin Import DB Feature
First Time appeared Alkacon
Alkacon opencms
Weaknesses CWE-611
Vendors & Products Alkacon
Alkacon opencms
Type Values Removed Values Added
Description OpenCMS v20 and before is vulnerable to XML External Entity (XXE) in the Admin Import DB feature due to insecure XML parsing of user supplied .zip files containing a manifest.xml.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
May 6, 2026, 6:40 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Deferred
Published
May 5, 2026, 5:17 PM
Modified
Jul 24, 2026, 9:10 PM