What is CVE-2023-48365?

CVE-2023-48365 is a critical-severity vulnerability in Qlik Sense, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 9.6/10. Published 2023-11-15.

How severe is CVE-2023-48365?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Is CVE-2023-48365 known to be exploited?

Yes. CVE-2023-48365 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-01-13), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Vulnerability in Qlik Sense

CVE-2023-48365

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.

Vulnerability class: HTTP Request Smuggling

EPSS: 0.247 (97.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.

Affected products

Qlik Qlik_sense — versions august_2022, august_2023, february_2022
N/a — versions n/a

Weakness classification (CWE)

CWE-444 — Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-01-13. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2025-02-03.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

cve@mitre.org (Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2023-48365?: CVE-2023-48365 is a critical-severity vulnerability in Qlik Sense, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 9.6/10. Published 2023-11-15.
How severe is CVE-2023-48365?: Critical severity. CVSS v3 base score is 9.6 out of 10.
Is CVE-2023-48365 known to be exploited?: Yes. CVE-2023-48365 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-01-13), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.