THREATPORT/VULNERABILITY/CVE-2025-34174
MEDIUM SEVERITY

CVE-2025-34174

Pfsense vulnerability

CVSS
5.4
EPSS
9.8%
EPSS pct
95th
Exploited
No known
In pfSense CE /usr/local/www/status_traffic_totals.php, the value of the start-day parameter is not ensured to be a numeric value or sanitized of HTML-related characters/strings before being directly displayed in the input box. This value can be saved as the default value to be displayed to all users when visiting the Status Traffic Totals page, resulting in stored cross-site scripting. The attacker must be authenticated with at least "WebCfg - Status: Traffic Totals" permissions.
Affected vendor
Pfsense
Affected product
Pfsense
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness type (CWE)
  • CWE-79 — Cross-Site Scripting (XSS)
Published
2025-09-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 9.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2025-34174

  • Confirm whether Pfsense Pfsense is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-34174.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-34174

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2025-34174 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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