| Reporter | Title | Published | Views | Family All 11 |
|---|---|---|---|---|
 | CVE-2026-77394 | 23 Sep 202622:35 | – | circl |
 | CVE-2026-77394 OpenC3 COSMOS: Stored, cross-user XSS via Telemetry screen BUTTON widget | 23 Sep 202618:53 | – | cvelist |
 | EUVD-2026-85564 | 23 Sep 202618:53 | – | euvd |
 | OpenC3 COSMOS: Stored, cross-user XSS via Telemetry screen BUTTON widget | 23 Sep 202621:24 | – | github |
 | CVE-2026-77394 | 23 Sep 202618:53 | – | mend |
 | CVE-2026-77394 | 23 Sep 202619:19 | – | nvd |
 | CVE-2026-77394 OpenC3 COSMOS: Stored, cross-user XSS via Telemetry screen BUTTON widget | 23 Sep 202618:53 | – | osv_cve |
| GHSA-GVF2-2RH5-MPGF OpenC3 COSMOS: Stored, cross-user XSS via Telemetry screen BUTTON widget | 23 Sep 202621:24 | – | osv_ghsa |
 | PT-2026-97522 | 23 Sep 202600:00 | – | ptsecurity |
 | CVE-2026-77394: Improper Neutralization of Input During Web Page Generation | 23 Sep 202600:00 | – | rapid7 |
10
[
{
"vendor": "OpenC3",
"product": "cosmos",
"versions": [
{
"version": ">= 5.0.6, < 7.3.0",
"status": "affected"
}
]
}
]| Parameter | Position | Path | Description | CWE |
|---|---|---|---|---|
| BUTTON widget action | request body | /openc3-api/screen | An authenticated actor with system_set permission can store a shared screen via a POST request. The BUTTON widget action within the request body can execute arbitrary JavaScript in another operator's browser session, leading to token theft. | CWE-79 |
Data
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23 Sep 2026 20:17Current
6Medium risk
Vulners AI Score6
CVSS 3.17.6
EPSS0.00417
SSVC