CVE-2026-6743
LowCVSS 3.5Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
A cross-site scripting vulnerability was found in the Calendar component of WebSystems WebTOTUM 2026. The attack can be initiated remotely and the exploit has been publicly disclosed. The vendor quickly released a fixed version of the product.
Risk Assessment
An attacker could execute malicious script in a user's browser, hijack session data, or perform unauthorized actions. The public availability of the exploit increases the risk.
Recommendation
Update WebTOTUM to the fixed version provided by the vendor. Additionally, implement input validation and security headers.
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Original NVD description (English source)
A vulnerability has been found in WebSystems WebTOTUM 2026. This impacts an unknown function of the component Calendar. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

