Description
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,
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TYPO3 | oidc | < 4.0.0 | 4.0.0 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | causal/oidc | >= 3.0.0, < 4.0.0 | 4.0.0 | GHSA-hj78-p4h7-m5fv |
Advisories 1
- WID-SEC-2025-0210 TYPO3 "oidc" Extension: Schwachstelle ermöglicht Erlangen von Benutzerrechten BSI CERT-Bund (WID) · Jan 28, 2025