TYPO3 frontend login vulnerable to Session Fixation
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-384.
Summary
It has been discovered that TYPO3 is susceptible to session fixation. If a user authenticates while anonymous session data is present, the session id is not changed. This makes it possible for attackers to generate a valid session id, trick users into using this session id (e.g. by leveraging a different Cross-Site Scripting vulnerability) and then maybe getting access to an authenticated session.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | typo3/cms (Packagist) | 6.2.0 to before 6.2.14 | 6.2.14 | Patch available | GHSA-r9vc-jfmh-6j48 |
| — | typo3/cms (Packagist) | 7.0.0 to before 7.3.1 | 7.3.1 | Patch available | GHSA-r9vc-jfmh-6j48 |
- typo3/cms (Packagist) Vendor— Affected 6.2.0 to before 6.2.14 Fixed in 6.2.14 Patch available GHSA-r9vc-jfmh-6j48
- typo3/cms (Packagist) Vendor— Affected 7.0.0 to before 7.3.1 Fixed in 7.3.1 Patch available GHSA-r9vc-jfmh-6j48
Remediation
- Fix · GHSA-r9vc-jfmh-6j48 typo3/cms (Packagist) Fixed in 6.2.14 Advisory →
- Fix · GHSA-r9vc-jfmh-6j48 typo3/cms (Packagist) Fixed in 7.3.1 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-r9vc-jfmh-6j48
References
Other 6
- https://github.com/TYPO3/typo3/commit/4c9aba94a930d56ab374693c9c5cc0458587278a
- https://github.com/TYPO3/typo3/commit/4f6e84bba3c13ea8b2652af1a4c47758aa0705f4
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2015-07-01-2.yaml
- https://github.com/TYPO3/typo3
- https://typo3.org/security/advisory/typo3-core-sa-2015-003
- https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-003
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences