---
id: "CVE-2023-48365"
kind: "vulnerability"
aliases: ["CVE-2023-48365"]
title: "Qlik Sense Enterprise for Windows before August 2023 Patch 2 allows unauthenticated remote code execution, aka QB-21683"
severity: "critical"
cvss: 9.9
epss: null
exploited: true
status: "open"
category: "other"
products: [{"name": "Qlik Sense", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qlik sense", "fixed": [], "affected": "= august_2022", "ecosystem": "vendor"}, {"name": "qlik sense", "fixed": [], "affected": "= august_2023", "ecosystem": "vendor"}, {"name": "qlik sense", "fixed": [], "affected": "= february_2022", "ecosystem": "vendor"}, {"name": "qlik sense", "fixed": [], "affected": "= february_2023", "ecosystem": "vendor"}, {"name": "qlik sense", "fixed": [], "affected": "= may_2022", "ecosystem": "vendor"}, {"name": "qlik sense", "fixed": [], "affected": "= may_2023", "ecosystem": "vendor"}, {"name": "qlik sense", "fixed": [], "affected": "= november_2021", "ecosystem": "vendor"}, {"name": "qlik sense", "fixed": [], "affected": "= november_2022", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "other", "qlik-sense", "ransomware", "self-hosted"]
not_affected_if: ["unknown"]
published_at: "2023-11-15T22:15:28+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-48365", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48365", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# Qlik Sense Enterprise for Windows before August 2023 Patch 2 allows unauthenticated remote code execution, aka QB-21683

Qlik Sense contains an HTTP tunneling flaw that lets an attacker escalate privileges and send HTTP requests from the backend server. CISA lists it as actively exploited, and the KEV entry notes known ransomware use.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Qlik Sense affected ? fixed ?
- vendor:qlik sense affected = august_2022 fixed ?
- vendor:qlik sense affected = august_2023 fixed ?
- vendor:qlik sense affected = february_2022 fixed ?
- vendor:qlik sense affected = february_2023 fixed ?
- vendor:qlik sense affected = may_2022 fixed ?
- vendor:qlik sense affected = may_2023 fixed ?
- vendor:qlik sense affected = november_2021 fixed ?
- vendor:qlik sense affected = november_2022 fixed ?

## Fix

Apply mitigations per vendor instructions, or discontinue use of the product if mitigations are unavailable (per CISA required action).

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-48365
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2023-48365

## From the sources

Qlik Sense Enterprise for Windows before August 2023 Patch 2 allows unauthenticated remote code execution, aka QB-21683. Due to improper validation of HTTP headers, a remote attacker is able to elevate their privilege by tunneling HTTP requests, allowing them to execute HTTP requests on the backend server that hosts the repository application. The fixed versions are August 2023 Patch 2, May 2023 Patch 6, February 2023 Patch 10, November 2022 Patch 12, August 2022 Patch 14, May 2022 Patch 16, February 2022 Patch 15, and November 2021 Patch 17. NOTE: this issue exists because of an incomplete fix for CVE-2023-41265.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_