Answer in brief
CVE-2025-1239 records a Unknown severity vulnerability in WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Blocked Sites List. The current sources do not mark it as known exploited. The current feed maps WatchGuard/Fireware OS (generic), WatchGuard/Fireware OS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WatchGuard/Fireware OS (generic), WatchGuard/Fireware OS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WatchGuard/Fireware OSgeneric | >=12.0 <12.11.1 | 12.11.1 |
| WatchGuard/Fireware OSgeneric | >=12.0 <12.5.13 | 12.5.13 |
Published upstream
Feb 14, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 8, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-1239 records a Unknown severity vulnerability in WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Blocked Sites List. The current sources do not mark it as known exploited. The current feed maps WatchGuard/Fireware OS (generic), WatchGuard/Fireware OS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WatchGuard/Fireware OS (generic), WatchGuard/Fireware OS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WatchGuard/Fireware OSgeneric | >=12.0 <12.11.1 | 12.11.1 |
| WatchGuard/Fireware OSgeneric | >=12.0 <12.5.13 | 12.5.13 |
Published upstream
Feb 14, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 8, 2026
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.
Quoted source text, attributed separately from HOL analysis.