CVE-2019-25397Public exploitNetwork attack vector

Browser script execution via reflected host parameters

Published Feb 18, 2026 · Updated Feb 18, 2026

Reflected XSS in IPFire 2.21 Core Update 127 hosts.cgi allows remote attackers to execute JavaScript through crafted POST requests. The script returns KEY1, IP, HOST, and DOM parameter values in generated HTML without neutralizing injected script markup. Exploitation requires user interaction with a crafted request in an authenticated WebGUI session, and code runs in that browser's IPFire origin.

CVSS severity6.1
Medium
EPSS probability0.24%
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 IPFire 2.21 Core Update 127 hosts.cgi allows remote attackers to execute JavaScript through crafted POST requests. The script returns KEY1, IP, HOST, and DOM parameter values in generated HTML without neutralizing injected script markup. Exploitation requires user interaction with a crafted request in an authenticated WebGUI session, and code runs in that browser's IPFire origin.

The record

CVE
CVE-2019-25397
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
IPFire
Product
IPFire
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2026Record 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=IPFire 2.21 - Core Update 127

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IPFire · IPFireversion=IPFire 2.21 - Core Update 127

Published CVSS scores

6.1VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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