SB2025012852 - Account takeover in OpenID Connect Authentication extension for Typo3
Published: January 28, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper authorization (CVE-ID: CVE-2025-24856)
CWE-ID: CWE-285 - Improper Authorization
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to hijack accounts.
The vulnerability exists due to an issue in account linking logic. A remote attacker can register a public frontend user account using email address before the user's first OIDC login and take over victim's account after oidc is used at a later stage.
Remediation
Install update from vendor's website.