Description
The actions linked in the emails of the extension (e.g. to confirm a registration or the deletion of an account) do not reject requests with a missing or invalid hash. Instead, the frontend user given in the request is used. Unauthenticated attackers can therefore perform these actions for arbitrary active frontend users. This allows them to retrieve the email address or username of all frontend users and to delete arbitrary frontend user accounts.
Published: 2026-11-03
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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History

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

Type Values Removed Values Added
Description The actions linked in the emails of the extension (e.g. to confirm a registration or the deletion of an account) do not reject requests with a missing or invalid hash. Instead, the frontend user given in the request is used. Unauthenticated attackers can therefore perform these actions for arbitrary active frontend users. This allows them to retrieve the email address or username of all frontend users and to delete arbitrary frontend user accounts.
Title Broken Access Control in extension "Frontend User Registration" (sf_register)
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: TYPO3

Published:

Updated: 2026-11-03T09:56:03.677Z

Reserved: 2026-11-01T13:47:45.207Z

Link: CVE-2026-120333

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T10:17:18.270

Modified: 2026-11-03T10:17:18.270

Link: CVE-2026-120333

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses