Answer in brief
CVE-2026-56127 records a Medium severity (CVSS 5.1) vulnerability in pfSense Plus < 26.07 / CE < 2.9.0 Stored XSS via firewall_rules_edit.php. The current sources do not mark it as known exploited. The current feed maps Netgate/pfSense CE (generic), Netgate/pfSense CE (generic), Netgate/pfSense Plus (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.1. 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 Netgate/pfSense CE (generic), Netgate/pfSense CE (generic), Netgate/pfSense Plus (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Netgate/pfSense CEgeneric | >=0 <2.9.0 | 2.9.0 |
| Netgate/pfSense CEgeneric | * | Not reported |
| Netgate/pfSense Plusgeneric | >=0 <26.07 | 26.07 |
Published upstream
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 3, 2026
pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Firewall: Rules: Edit privilege to inject arbitrary JavaScript via the descr parameter in /firewall_rules_edit.php. The firewall rule description is stored in the pfSense XML configuration with only backslash-escaping applied and no HTML sanitization, then rendered without encoding in the firewall log table in /status_logs_filter.php. The payload executes in the browser of any user with the Status: Logs: Firewall privilege who views the affected log entries.
Quoted source text, attributed separately from HOL analysis.