Content of external URL mails, their stylesheets and images to embed is fetched by the server without validating the target host. Backend users with access to the mail module can make the server send requests to hosts in the internal network.

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Vendors Products
Extension Mail Subscribe
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Fixes

Solution

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Workaround

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History

Tue, 03 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Typo3
Typo3 extension Mail
Vendors & Products Typo3
Typo3 extension Mail

Tue, 03 Nov 2026 10:00:00 +0000

Type Values Removed Values Added
Description Content of external URL mails, their stylesheets and images to embed is fetched by the server without validating the target host. Backend users with access to the mail module can make the server send requests to hosts in the internal network.
Title Server-Side Request Forgery in extension "Mail" (mail)
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TYPO3

Published:

Updated: 2026-11-03T18:32:05.864Z

Reserved: 2026-11-01T13:30:23.579Z

Link: CVE-2026-120331

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-03T10:17:17.970

Modified: 2026-11-03T16:30:49.290

Link: CVE-2026-120331

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T16:23:48Z

Weaknesses