CVE-2025-34172Network attack vector

Script execution via unencoded stick-table parameter

Published Sep 9, 2025 · Updated Sep 9, 2025

Reflected XSS in the pfSense CE HAProxy package 0.63_10 allows remote attackers to execute script in an authenticated victim's browser. haproxy_stats.php inserts the showsticktablecontent GET value into HTML without output encoding or confirming that it names an existing stick table. Exploitation requires a logged-in victim to open a crafted request, and the script runs in that victim's pfSense web-interface context.

CVSS severity4.8
Medium
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in the pfSense CE HAProxy package 0.63_10 allows remote attackers to execute script in an authenticated victim's browser. haproxy_stats.php inserts the showsticktablecontent GET value into HTML without output encoding or confirming that it names an existing stick table. Exploitation requires a logged-in victim to open a crafted request, and the script runs in that victim's pfSense web-interface context.

The record

CVE
CVE-2025-34172
Published
Sep 9, 2025
Updated
Sep 9, 2025
Vendor
Netgate
Product
pfSense CE
Classifications
CWE-79, CAPEC-591, T1203
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.63_10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Netgate · pfSense CEversion=0.63_10

Published CVSS scores

4.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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