Typo3 Security Misconfiguration in Frontend Session Handling
Priority LOW 38Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
It has been discovered session data of properly authenticated and logged in frontend users is kept and transformed into an anonymous user session during the logout process. This way the next user using the same client application gains access to previous session data.
Why it matters now
Fix Fixed typo3/cms (Packagist): 8.7.27, 9.5.8
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) | 8.0.0 to before 8.7.27 | 8.7.27 | Patch available | GHSA-qr5f-6fcv-w69q |
| — | typo3/cms (Packagist) | 9.0.0 to before 9.5.8 | 9.5.8 | Patch available | GHSA-qr5f-6fcv-w69q |
- typo3/cms (Packagist) Vendor— Affected 8.0.0 to before 8.7.27 Fixed in 8.7.27 Patch available GHSA-qr5f-6fcv-w69q
- typo3/cms (Packagist) Vendor— Affected 9.0.0 to before 9.5.8 Fixed in 9.5.8 Patch available GHSA-qr5f-6fcv-w69q
Remediation
- Fix · GHSA-qr5f-6fcv-w69q typo3/cms (Packagist) Fixed in 8.7.27 Advisory →
- Fix · GHSA-qr5f-6fcv-w69q typo3/cms (Packagist) Fixed in 9.5.8 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-qr5f-6fcv-w69q
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences