Medium severity4.2NVD Advisory· Published Mar 16, 2025· Updated Apr 15, 2026
CVE-2025-24856
CVE-2025-24856
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,
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
causal/oidcPackagist | >= 3.0.0, < 4.0.0 | 4.0.0 |
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-hj78-p4h7-m5fvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-24856ghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/causal/oidc/CVE-2025-24856.yamlghsaWEB
- github.com/xperseguers/t3ext-oidc/commit/877e09f6faf4c87bbb41233112ec7e30d3c902b3nvdWEB
- typo3.org/security/advisory/typo3-ext-sa-2025-001nvdWEB
News mentions
0No linked articles in our index yet.