THREATPORT/VULNERABILITY/CVE-2025-34175
MEDIUM SEVERITY

CVE-2025-34175

Pfsense vulnerability

CVSS
6.1
EPSS
14.8%
EPSS pct
96th
Exploited
No known
In pfSense CE /usr/local/www/suricata/suricata_filecheck.php, the value of the filehash parameter is directly displayed without sanitizing for HTML-related characters/strings. This can result in reflected cross-site scripting if the victim is authenticated.
Affected vendor
Pfsense
Affected product
Pfsense
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/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 no privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 14.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2025-34175

  • Confirm whether Pfsense Pfsense is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-34175.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-34175

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2025-34175 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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