Is CVE-2026-6743 actively exploited?

No active exploitation of CVE-2026-6743 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6743 be exploited remotely?

Yes. CVE-2026-6743 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6743?

CVE-2026-6743 has a CVSS score of 3.5 (LOW).

HOME VULNERABILITIESCVE-2026-6743

LOW

CVE-2026-6743

CWE-79Published: April 21, 2026· Updated: Apr 22, 2026

3.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.8th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-6743 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.