Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type (e.g., text/plain).

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Webmin Webmin unaffected
Version Status Constraints
0 affected < 2.640

No data.

No data.

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No data.

Project Subscriptions

Vendors Products
Webmin Subscribe
Webmin Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/webmin/webmin/commit/cf432879a14568c4bb44cd2f9e5a9bd0e168edc1 cve-icon cve-icon
https://github.com/webmin/webmin/compare/2.630...2.640 cve-icon cve-icon
History

Wed, 27 May 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

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

Type Values Removed Values Added
Description Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type (e.g., text/plain).
First Time appeared Webmin
Webmin webmin
Weaknesses CWE-79
CPEs cpe:2.3:a:webmin:webmin:*:*:*:*:*:*:*:*
Vendors & Products Webmin
Webmin webmin
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-27T17:27:21.572Z

Reserved: 2026-05-27T14:31:13.385Z

Link: CVE-2026-49102

cve-icon Vulnrichment

Updated: 2026-05-27T17:27:18.049Z

cve-icon NVD

Status : Deferred

Published: 2026-05-27T15:16:34.003

Modified: 2026-05-27T19:49:48.143

Link: CVE-2026-49102

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T20:00:05Z

Weaknesses