CVE-2025-24856

First published: Tue Jan 28 2025(Updated: )

## Problem Description A vulnerability in the account linking logic of the extension allows a pre-hijacking attack leading to Account Takeover. The attack can only be exploited if the following requirements are met: - An attacker can anticipate the email address of the user. - An attacker can register a public frontend user account using that email address before the user's first OIDC login. - The IDP returns the field email containing the email address of the user ## Solution An updated versions 4.0.0 is available from the TYPO3 extension manager, packagist and at https://extensions.typo3.org/extension/download/oidc/4.0.0/zip Users of the extension are advised to update the extension as soon as possible.

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• collector/github-advisory-latest
• source/GitHub
• alias/GHSA-hj78-p4h7-m5fv
• alias/CVE-2025-24856
• agent/software-canonical-lookup
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• agent/references
• agent/source
• agent/last-modified-date
• agent/weakness
• agent/tags
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• agent/softwarecombine
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• package-manager/composer