External risk intelligence

Umami Software web app allows attackers to steal customer data or take control

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-4317

An authenticated attacker can exploit a SQL injection flaw in the Umami Software web application to steal sensitive data or execute dangerous commands. This vulnerability deserves attention now due to the potential for data compromise.

4Halo Surface Signal

SQL Injection

External exposure likelihood

Halo Surface Signal score for CVE-2026-4317

Umami is a web application commonly deployed as an internet-facing service for web analytics. While this specific vulnerability requires authentication, web applications of this type are typically designed to be reachable over the public internet, placing the application surface within the likely category for internet-facing exposure.

Horizon Alert

Summary of the vulnerability and why it matters

This vulnerability in Umami Software allows an authenticated user to inject malicious SQL commands through a poorly sanitized request parameter. This could lead to unauthorized access and manipulation of sensitive database information. Teams should pay close attention as it impacts data integrity and security.

  • Compromised database data.
  • Authenticated attacker can execute commands.
  • Affects Umami web application.

Attack Path

How an attacker could exploit the issue

An authenticated attacker could exploit this SQL injection vulnerability in Umami Software's web application by manipulating the 'timezone' request parameter. By crafting a malicious payload with SQL commands, the attacker could bypass input sanitization and execute arbitrary SQL, potentially leading to data compromise or the execution of dangerous functions within the database.

  • Requires authenticated access.
  • Targets the 'timezone' request parameter.
  • Exploitation depends on raw query functions.

Live Threat

Current exploitation, exposure, and threat context

This SQL injection vulnerability in Umami Software could be attractive to attackers because it allows for data compromise and execution of dangerous functions. The ease of exploitation and the potential for significant data impact make it a target. However, the requirement for authentication may slightly reduce its immediate appeal for widespread, unauthenticated attacks.

  • Requires authentication.
  • Exploitation allows data compromise.
  • Public exploit details are not yet widely available.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Prioritize reviewing logs for any authenticated access attempts that modify the 'timezone' parameter to detect potential SQL injection. Investigate and isolate any Umami instances exhibiting suspicious 'timezone' parameter activity to prevent further data compromise or command execution.

  • Monitor for suspicious 'timezone' parameter values.
  • Block traffic with malicious SQL payloads.
  • Isolate affected Umami instances.

Frequently asked questions

What is Umami Software?

Umami is a web application used for website analytics. It helps users understand how visitors interact with their websites by tracking various metrics.

What is CVE-2026-4317 and what kind of weakness does it represent?

CVE-2026-4317 is a critical SQL injection (SQLi) vulnerability in Umami Software. This weakness allows attackers to insert malicious SQL code into the application's database queries.

How might an attacker exploit this Umami Software vulnerability?

An attacker who is already authenticated to Umami can exploit this by sending a specially crafted request that manipulates the 'timezone' parameter. This manipulation can trick the application into running arbitrary SQL commands.

Who should care about this Umami Software vulnerability?

Organizations using Umami Software, especially those with internet-facing web analytics services, should care. Even though authentication is required, such applications are often accessible online, posing a risk to sensitive data.

What should I do if I'm running Umami Software?

As a first step, review your system logs for any unusual activity related to the 'timezone' request parameter. If suspicious activity is found, isolate the affected Umami instance to prevent further data compromise.

References