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,
References (2)
Core 2
Scores
CVSS v3
4.2
EPSS
0.0008
EPSS Percentile
24.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-348
Status
published
Products (2)
causal/oidc
3.0.0 - 4.0.0Packagist
TYPO3/oidc
< 4.0.0
Published
Mar 16, 2025
Tracked Since
Feb 18, 2026