CVE-2026-77130
Insufficient Session Expiration in extension "SYSSY - TYPO3 Monitoring & Security Checks" (syssy)
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 25, 2026
- Updated
- Aug 25, 2026
- Reserved
- Aug 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | TYPO3 |
Weaknesses
- CWE-613 Insufficient Session Expiration
Affected Products
| Product | Versions |
|---|---|
Extension "SYSSY - TYPO3 Monitoring & Security Checks"TYPO3 |
|
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-015vendor-advisory
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