4.8

CVE-2026-13377

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in SIP Proxy Configuration

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS SIP Proxy module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-6947.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Watchguard ≫ Fireware Version >= 12.0 < 12.12.1
   Watchguard ≫ Firebox M270 Version-
   Watchguard ≫ Firebox M290 Version-
   Watchguard ≫ Firebox M370 Version-
   Watchguard ≫ Firebox M390 Version-
   Watchguard ≫ Firebox M440 Version-
   Watchguard ≫ Firebox M4600 Version-
   Watchguard ≫ Firebox M470 Version-
   Watchguard ≫ Firebox M4800 Version-
   Watchguard ≫ Firebox M5600 Version-
   Watchguard ≫ Firebox M570 Version-
   Watchguard ≫ Firebox M5800 Version-
   Watchguard ≫ Firebox M590 Version-
   Watchguard ≫ Firebox M670 Version-
   Watchguard ≫ Firebox M690 Version-
   Watchguard ≫ Firebox Nv5 Version-
   Watchguard ≫ Firebox T20 Version-
   Watchguard ≫ Firebox T25 Version-
   Watchguard ≫ Firebox T40 Version-
   Watchguard ≫ Firebox T45 Version-
   Watchguard ≫ Firebox T55 Version-
   Watchguard ≫ Firebox T70 Version-
   Watchguard ≫ Firebox T80 Version-
   Watchguard ≫ Firebox T85 Version-
   Watchguard ≫ Fireboxcloud Version-
   Watchguard ≫ Fireboxv Version-
Watchguard ≫ Fireware Version >= 2025.1 < 2026.2.1
   Watchguard ≫ Firebox M295 Version-
   Watchguard ≫ Firebox M395 Version-
   Watchguard ≫ Firebox M495 Version-
   Watchguard ≫ Firebox M595 Version-
   Watchguard ≫ Firebox M695 Version-
   Watchguard ≫ Firebox T115-w Version-
   Watchguard ≫ Firebox T125 Version-
   Watchguard ≫ Firebox T125-w Version-
   Watchguard ≫ Firebox T145 Version-
   Watchguard ≫ Firebox T145-w Version-
   Watchguard ≫ Firebox T185 Version-
Watchguard ≫ Fireware Version >= 12.5 <= 12.5.18
   Watchguard ≫ Firebox T15 Version-
   Watchguard ≫ Firebox T35 Version-
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.066
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 4.8 1.7 2.7
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
5d1c2695-1a31-4499-88ae-e847036fd7e3 4.8 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00019
Vendor Advisory
https://psirt.watchguard.com/CVE-2026-13377