CVE-2023-48365: Qlik Sense

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

Yes, if you run Qlik Sense. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-01-13, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-02-03; treat that as the outer limit, not the target. CISA also lists it as known to be used in ransomware campaigns.
EPSS 47.5%, percentile 99: FIRST’s model estimates a 47.5% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
Needs an account (low (any account)). Exposure depends on who can log in.

What it is

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’s summary

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.

Weakness type: CWE-444.

Product: Qlik Sense · Assigned by: mitre · Published: 2023-11-15

Affected and fixed versions

Vendor	Product	Affected versions (per CVE record)
n/a	n/a	see vendor advisory

Severity scores

Scored by	CVSS	Score	Vector
mitre	3.1	9.6 Critical	`CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:L/S:C/UI:N`

Attack complexity: low
Attack vector: network (remotely reachable)
Privileges required: low (any account)
Scope: changed (can affect other components)
User interaction: none

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

CISA KEV: added 2025-01-13; federal due date 2025-02-03. Known ransomware use: Known.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA SSVC assessment: exploitation active, automatable no, technical impact total.
FIRST EPSS (model of 2026-10-21): 47.45% probability of exploitation activity in the next 30 days; percentile 99.

Timeline

2023-11-15 — CVE record published by mitre
2025-01-13 — Added to CISA’s Known Exploited Vulnerabilities catalog
2025-02-03 — CISA remediation deadline for US federal agencies
2025-10-21 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.