CVE-2026-77130

Medium

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.

SeverityMedium

CVSS5.3

Exploit probability—

Product

Extension "SYSSY - TYPO3 Monitoring & Security Checks"

PublishedAug 25, 2026

First seenAug 25, 2026

Weakness typeCWE-613CWE-613

How to fix

Update

TYPO3 Extension "SYSSY - TYPO3 Monitoring & Security Checks"3.0.6 or later

Vendor advisories

typo3.org/security/advisory/typo3-ext-sa-2026-015

Affected products

Product	Affected versions	Fixed in
TYPO3 Extension "SYSSY - TYPO3 Monitoring & Security Checks"	v < 3.0.6	3.0.6

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