Medium severity · published Dec 4, 2025
CVE-2025-6946
WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in IPS Configuration
4.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fireware OS · WatchGuard
12.0 before 12.11.3; 12.0 before 12.5.13 · source: vendor
FI
Fireware · Watchguard
12.0.0 before 12.11.3; 12.5 before 12.5.13 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-6946
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6946
psirt.watchguard.com
https://psirt.watchguard.com/CVE-2025-6946
Vendor Advisory
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00011
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