Description
The extension fails to properly validate the expiration of a client-supplied JWT token, allowing an attacker in control of a valid API key to authenticate with an expired token. Exploitation requires the attacker to already be in control of the SYSSY project's API key.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TYPO3 | Extension "SYSSY - TYPO3 Monitoring & Security Checks" | < 3.0.6 | 3.0.6 |
Advisories 1
- WID-SEC-2026-3003 TYPO3 Extensions: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 25, 2026
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-015 vendor-advisory