Description
When OpenSSL is unavailable on the server, the extension transmits TYPO3 system information in cleartext instead of encrypting it. 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