Most recent entries from all

EUVD-2026-223025

fkie_cve-2025-24856

An issue was discovered in the oidc (aka OpenID Connect Authentication) extension before 4.0.0 for TYPO3. The account linking logic allows a pre-hijacking attack, leading to Account Takeover. The attack can only be exploited if the following requirements are met: (1) an attacker can anticipate the e-mail address of the user, (2) an attacker can register a public frontend user account using that e-mail address before the user's first OIDC login, and (3) the IDP returns an email field containing the e-mail address of the user,

GHSA-hj78-p4h7-m5fv — TYPO3-EXT-SA-2025-001: Account Takeover in extension "OpenID Connect Authentication" (oidc)

Affected: Packagist: causal/oidc

## 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.

WID-SEC-W-2025-0210 — TYPO3 "oidc" Extension: Schwachstelle ermöglicht Erlangen von Benutzerrechten

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in TYPO3´s "oidc" Extension ausnutzen, um Benutzerrechte zu erlangen.