Medium severity · published Feb 14, 2025
CVE-2025-1239
WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Blocked Sites List
4.8
CVSS
0.6%
EPSS
No
On KEV
Description
A stored cross-site scripting (XSS) vulnerability exists in the management interface of WatchGuard Firebox appliances via the Blocked Sites list. An authenticated remote attacker with administrator privileges could exploit this vulnerability to execute arbitrary JavaScript code in the Firebox management interface of another management user.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% 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 12.11.1; 12.0 before 12.5.13 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-1239
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-1239
psirt.watchguard.com
https://psirt.watchguard.com/CVE-2025-1239
www.watchguard.com
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00002
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