CVE-2026-42086

Katalog CVE

CVSS 4.6 · Medium EPSS 0,29%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada openc3 cosmos. Skor CVSS 3.1 4.6 (Medium) menurut github.com.

Deskripsi (NVD)

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to version 7.0.0, the Command Sender UI uses an unsafe eval() function on array-like command parameters, which allows a user-supplied payload to execute in the browser when sending a command. This creates a self-XSS risk because an attacker can trigger their own script execution in the victim’s session, if allowed to influence the array parameter input, for example via phishing. If successful, an attacker may read or modify data in the authenticated browser context, including session tokens in local storage. This issue has been patched in version 7.0.0.

Rincian

Terbit di NVD

4 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

4.6 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 19,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/OpenC3/cosmos/security/advisories/GHSA-ffq5-qpvf-xq7x exploit · advisory vendor