csirt@kutim:~/threat-intel/cve/CVE-2026-77394

Katalog CVE

CVSS 7.6 · High EPSS 0,39%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). Skor CVSS 3.1 7.6 (High) menurut github.com.

Deskripsi (NVD)

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.0.6 until 7.3.0, an authenticated actor with system_set permission can store a shared screen through POST /openc3-api/screen whose BUTTON widget action is evaluated by openc3-cosmos-init/plugins/packages/openc3-vue-common/src/widgets/ButtonWidget.vue in another operator's browser session when the button is activated. The stored script runs in the COSMOS origin and can read localStorage.openc3Token, allowing theft of the victim's bearer token, account takeover, and actions with the victim's privileges. The permissive content security policy contributes to execution but is not the primary root cause. This issue is fixed in version 7.3.0.

Rincian

Terbit di NVD
23 September 2026
Terakhir diubah
23 September 2026
Status NVD
Deferred
CVSS 3.1
7.6 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/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)
0,39% peluang dieksploitasi; lebih tinggi dari 31,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.