Cross-Site Scripting (XSS) in Watchguard Fireware OS (CVE-2025-1071)
Summary
Cross-site scripting in Watchguard Fireware OS (CVE-2025-1071). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS allows Stored XSS via the spamBlocker module. This vulnerability requires an authenticated administrator session to a locally managed Firebox.This issue affects Fireware OS: from 12.0 through 12.5.12+701324, from 12.6 through 12.11.
Source: JVN (Japan Vulnerability Notes) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-1071 has been found in Watchguard Fireware OS.
Risk of unauthorized operations or information disclosure. CVSS score: 4.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Watchguard Fireware OS CVE-2025-1071" on the vendor's site.
CVE-2025-1071 (Watchguard Fireware OS) — CWE-79 / CVSS v3 4.8
Attack vector: remote (network-reachable)
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Cross-site scripting (XSS) (CWE-79) exists in Watchguard Fireware OS.
Check the vendor advisory for the affected versions of Watchguard Fireware OS.
Severity: Medium (CVSS 4.8/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Watchguard Fireware OS を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- JVN JVNDB-2026-023509
- patch watchguard.com
- web nvd.nist.gov
- web psirt.watchguard.com
- web github.com