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  3. CVE-2023-48365
Exploited in the wildUsed by ransomwareServers & business softwareWork IT

CVE-2023-48365 Qlik Sense: software flaw

In plain words: A mistake in the software that attackers have found a way to abuse. Depends on the product — see the description and the vendor advisory.

Confirmed exploited by CISA on · US federal patch deadline Feb 3, 2025

What to do

  1. Install Qlik's security update for Sense. If no update exists, follow the vendor's workaround or stop using the product until one ships.
  2. Keep a list of every internet-facing server you run so nothing is forgotten.
  3. Patch anything in this catalog first, ahead of normal patch cycles.
  4. Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.

Read Qlik's advisory ↗

Who is affected

Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.

The details

Official name
Qlik Sense HTTP Tunneling Vulnerability
Product
Qlik Sense
CISA description
Qlik Sense contains an HTTP tunneling vulnerability that allows an attacker to escalate privileges and execute HTTP requests on the backend server hosting the software.
Type of flaw
Software flaw (CWE-444)
Confirmed exploited
Jan 13, 2025 — known to be used in ransomware attacks
US federal patch deadline
Feb 3, 2025

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Answering about CVE-2023-48365 ·

Questions about CVE-2023-48365

Is CVE-2023-48365 being exploited?

Yes. CISA added CVE-2023-48365 to its Known Exploited Vulnerabilities catalog on Jan 13, 2025, which means there is reliable evidence of real-world attacks, including by ransomware groups.

How do I fix CVE-2023-48365?

Install Qlik's security update for Sense. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.

Am I affected by CVE-2023-48365?

Only if you use Qlik Sense. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

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