What is CVE-2025-6946?

CVE-2025-6946 is a medium-severity vulnerability in Watchguard Fireboxcloud, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-12-04.

How severe is CVE-2025-6946?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Watchguard Fireboxcloud

CVE-2025-6946

A stored cross-site scripting (XSS) vulnerability exists in the management interface of WatchGuard Firebox appliances via the IPS configuration. An authenticated remote attacker with administrator privileges could exploit this vulnerability to execute arbitrary JavaScript code in the Firebox management ninterface of another management user.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (5.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory, Vendor Advisory)
5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory)

Frequently asked questions

What is CVE-2025-6946?: CVE-2025-6946 is a medium-severity vulnerability in Watchguard Fireboxcloud, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-12-04.
How severe is CVE-2025-6946?: Medium severity. CVSS v3 base score is 4.8 out of 10.