CVE-2026-120331

Server-Side Request Forgery in extension "Mail" (mail)

Published Nov 3, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

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
Metrics ssvc

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

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
TYPO3
Published
Updated
Nov 3, 2026, 6:32 PM
Reserved
Nov 1, 2026, 1:30 PM
Status
Deferred
Published
Nov 3, 2026, 10:17 AM
Modified
Nov 3, 2026, 7:17 PM