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[ CVE-2023-48365 · Published 15 Nov 2023 ]

Qlik Sense HTTP Tunneling Vulnerability

Exploited · CISA KEV CVSS 9.9 EPSS 47%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-01-13
  • Known to be used in ransomware campaigns
  • EPSS: 47% chance of exploitation in the next 30 days (higher than 99% of CVEs)
  • Critical severity: CVSS 9.9

[ Description ]Official description

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.

CISA: 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.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 3 Feb 2025): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References