CVE-2019-25396Public exploitNetwork attack vectorHinoki check available

Browser script execution via reflected POST parameters

Published Feb 18, 2026 · Updated Feb 18, 2026

Reflected XSS in IPFire 2.21 Core Update 127 allows remote attackers to execute JavaScript in a user's browser through crafted POST data. The updatexlrator.cgi response returns the MAX_DISK_USAGE or MAX_DOWNLOAD_RATE value without neutralizing script markup. The payload runs only when a user interacts with the crafted request and the affected WebGUI response loads, limiting execution to that browser context.

CVSS severity5.1
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reflected XSS in IPFire 2.21 Core Update 127 allows remote attackers to execute JavaScript in a user's browser through crafted POST data. The updatexlrator.cgi response returns the MAX_DISK_USAGE or MAX_DOWNLOAD_RATE value without neutralizing script markup. The payload runs only when a user interacts with the crafted request and the affected WebGUI response loads, limiting execution to that browser context.

The record

CVE
CVE-2019-25396
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
6.1VulnCheckCVSS: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
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo