Security readout for executives and security teams
Plain-English summary
A flaw in older Qlik Sense Enterprise for Windows releases lets a remote attacker with low-level privileges tunnel crafted HTTP requests to the backend repository server. Successful exploitation can raise privileges and seriously affect data confidentiality and integrity. The CVSS score is 9.6, and CISA lists the vulnerability as known exploited.
Executive priority
Treat as an urgent remediation item because it is critical, remotely reachable, can elevate privileges, and appears in CISA's KEV catalog. Identify affected Qlik servers immediately, prioritize exposed and sensitive deployments, apply the vendor-fixed releases, and investigate available logs for suspicious activity.
Technical view
CVE-2023-41265 is a CWE-444 HTTP request tunneling flaw. Raw HTTP requests can carry tunneled requests that the backend repository application executes. The CVSS 3.1 vector indicates network reachability, low attack complexity, low privileges required, no user interaction, high confidentiality and integrity impact, and changed scope.
Likely exposure
Exposure applies to Qlik Sense Enterprise for Windows: May 2023 Patch 3 or earlier, February 2023 Patch 7 or earlier, November 2022 Patch 10 or earlier, and August 2022 Patch 12 or earlier. The supplied evidence does not identify affected configurations, internet-exposure requirements, or other Qlik products.
Exploitation context
CISA KEV inclusion establishes that CVE-2023-41265 is known to have been exploited. The supplied sources do not describe exploitation volume, targeted organizations, observed indicators, attacker attribution, or whether exploitation remains ongoing. Attackers require low privileges according to the CVSS vector.
Researcher notes
The source bundle identifies the request-tunneling class, backend repository application, affected release boundaries, fixed releases, and CVSS vector. It does not provide protocol-level root cause, request patterns, indicators of compromise, affected components, authentication specifics beyond low privileges, or detection signatures. Validation should avoid assuming details absent from Qlik guidance.
Mitigation direction
- Upgrade to August 2023 IR or a later vendor-supported release.
- Alternatively install May 2023 Patch 4, February 2023 Patch 8, November 2022 Patch 11, or August 2022 Patch 13.
- Prioritize externally reachable or business-critical Qlik Sense deployments.
- Review current Qlik security guidance and release notes before deployment.
- Restrict unnecessary access to Qlik Sense while remediation is pending.
Validation and detection
- Inventory all Qlik Sense Enterprise for Windows servers and installed patch levels.
- Confirm each deployment is newer than the affected version boundaries.
- Verify the approved update completed successfully on every node.
- Review available HTTP and repository-service logs for unexplained tunneled or backend requests.
- Confirm access controls limit Qlik Sense exposure to intended users and networks.
Public sources used
The source record changed after analysis: Material source record changed after analysis.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-444: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-41265 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.6 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:L/S:C/UI:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:L/S:C/UI:N3.15.8mitreVulnerability scoring details
Base CVSS 3.1 score
9.6CriticalVector: CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:L/S:C/UI:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- Added to KEVCISA-ADP
CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://community.qlik.com/t5/Release-Notes/tkb-p/ReleaseNotesCVE reference, mitre
- https://community.qlik.com/t5/Official-Support-Articles/Critical-Security-fixes-for-Qlik-Sense-Enterprise-for-Windows/ta-p/2110801CVE reference, mitre
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41265CVE reference, CISA-ADP · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.