Is CVE-2026-6159 actively exploited?

No active exploitation of CVE-2026-6159 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6159 be exploited remotely?

Yes. CVE-2026-6159 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6159?

CVE-2026-6159 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-6159

CWE-79Published: April 13, 2026· Updated: Apr 13, 2026

4.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:9.3th

Official Description

A vulnerability has been found in code-projects Simple ChatBox up to 1.0. Affected by this vulnerability is an unknown functionality of the file /chatbox/insert.php of the component Endpoint. Such manipulation of the argument msg leads to cross site scripting. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.

NVD Source

Technical Analysis

CVE-2026-6159 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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.