Description
Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi.
Published: 2026-05-27
Score: 9.4 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 27 May 2026 21:30:00 +0000

Type Values Removed Values Added
Title Unsafely Constructed Filename in Webmin Mailbox Attachment Saving Leads to Remote Code Execution

Wed, 27 May 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 27 May 2026 15:15:00 +0000

Type Values Removed Values Added
Description Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi.
First Time appeared Webmin
Webmin webmin
Weaknesses CWE-24
CPEs cpe:2.3:a:webmin:webmin:*:*:*:*:*:*:*:*
Vendors & Products Webmin
Webmin webmin
References
Metrics cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-27T16:14:12.073Z

Reserved: 2026-05-27T14:37:18.174Z

Link: CVE-2026-49103

cve-icon Vulnrichment

Updated: 2026-05-27T16:14:09.539Z

cve-icon NVD

Status : Deferred

Published: 2026-05-27T15:16:34.170

Modified: 2026-06-17T10:55:30.553

Link: CVE-2026-49103

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T04:45:07Z

Weaknesses