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    CVE-2026-56128

    pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Firewall: Schedules: Edit privilege to inject arbitrary JavaScript via the descr parameter in /firewall_schedule_edit.php. The schedule description is stored without HTML sanitization and subsequently inserted into an HTML attribute value in /firewall_rules.php with only single-quote escaping applied, permitting double-quote breakout. The payload executes in the browser of any user with the Firewall: Rules privilege who views the rules list with the affected schedule attached.

    Published:Sep 3, 2026
    Last Modified:Sep 3, 2026
    EPS:Sep 3, 2026
    EPSS Score:
    CVSS Score:5.4

    Affected Products

    Vendor
    Netgate
    Product
    Pfsense Ce
    Vendor
    Netgate
    Product
    Pfsense Plus

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-56127 (CVSS 5.1) — pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Firewall: Rules: Edit privile…
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    CVE-2025-34178 (CVSS 5.1) — In pfSense CE /suricata/suricata_app_parsers.php, the value of the policy_name parameter is not sanitized of H…
    CVE-2025-34177 (CVSS 5.1) — In pfSense CE /suricata/suricata_flow_stream.php, the value of the policy_name parameter is not sanitized of H…
    CVE-2025-34176 (CVSS 5.3) — In pfSense CE /suricata/suricata_ip_reputation.php, the value of the iplist parameter is not sanitized of dire…
    CVE-2025-34175 (CVSS 5.1) — In pfSense CE /usr/local/www/suricata/suricata_filecheck.php, the value of the filehash parameter is directly …
    CVE-2025-34174 (CVSS 5.1) — In pfSense CE /usr/local/www/status_traffic_totals.php, the value of the start-day parameter is not ensured to…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High