What it is
CVE-2023-41265 is a vulnerability affecting Qlik Qlik Sense Enterprise for Windows. An HTTP Request Tunneling vulnerability found in Qlik Sense Enterprise for Windows for versions May 2023 Patch 3 and earlier,...
Vulnerability report
Exploited in the wild
Confirmed confidence
In CISA KEV
CVE-2023-41265
Qlik Sense Enterprise for Windows
Qlik / Qlik Sense Enterprise for Windows · 0 to <= may_2023
- Severity
- CVSS 9.6 · Critical
- Confidence
- Confirmed
- Exploit status
- Exploited in the wild
- EPSS
- 84.5%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.
Who is affected?
Qlik / Qlik Sense Enterprise for Windows 0 to <= may_2023.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Qlik Sense Enterprise for Windows
An HTTP Request Tunneling vulnerability found in Qlik Sense Enterprise for Windows for versions May 2023 Patch 3 and earlier, February 2023 Patch 7 and earlier, November 2022 Patch 10 and earlier, and August 2022 Patch 12 and earlier allows a remote attacker to elevate their privilege by tunneling HTTP requests in the raw HTTP request. This allows them to send requests that get executed by the backend server hosting the repository application.
This is fixed in August 2023 IR, May 2023 Patch 4, February 2023 Patch 8, November 2022 Patch 11, and August 2022 Patch 13.
Vendor
Product
Affected
Status
qlik
qlik_sense
Through may_2023
Affected
qlik
qlik_sense
Through february_2023
Affected
qlik
qlik_sense
Through august_2022
Affected
n/a
n/a
n/a
Affected
- Published
- 29 Aug 2023
- Exploitation Reported
- 07 Dec 2023
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
Tags
malware
cisa
ransomware
nuclei_scanner
windows
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2023-41265
- community.qlik.com/t5/Release-Notes/tkb-p/ReleaseNotes community.qlik.com · CVE Record https://community.qlik.com/t5/Release-Notes/tkb-p/ReleaseNotes
- community.qlik.com/t5/Official-Support-Articles/Critical-Securi... community.qlik.com · CVE Record https://community.qlik.com/t5/Official-Support-Articles/Critical-Secu...
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CISA
Independent exploitation attestation added to the KEV Intelligence record.
Used in malware
CISA
Malware families have been linked to exploitation of this CVE.
Proof of concept available
Nuclei Templates
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2023-12-07 00:00 UTC |
| The Shadowserver | 2026-05-31 00:00 UTC |
| CVE | 2026-08-05 04:30 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
Nuclei template detected 25 Apr 2025.
View Nuclei template (opens in new tab)Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →Scanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-41265.yaml | 25 Apr 2025 |
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
9.6
Critical
CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:L/S:C/UI:N
EPSS
84.5%
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Qlik Sense Enterprise - HTTP Request Smuggling
nuclei · Created Unknown
Timeline
From disclosure to observed exploitation
-
KEV confirmed by CVE
Exploitation attested by an external source
-
Public PoC available
Public proof-of-concept code published
-
KEV confirmed by The Shadowserver
Exploitation attested by an external source
-
Nuclei template available
Scanner coverage available
-
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
First public exploitation report
Exploit observed in malware
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2023-41265
Free JSON includes basic KEV fields{
"cve_id": "CVE-2023-41265",
"confidence": "Confirmed",
"cvss_score": 9.6,
"cvss_estimated": false,
"epss_score": 0.84473,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.