{"id":"CVE-2023-48365","kind":"vulnerability","aliases":["CVE-2023-48365"],"related":[],"title":"Qlik Sense Enterprise for Windows before August 2023 Patch 2 allows unauthenticated remote code execution, aka QB-21683","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.","summary":"Qlik Sense contains an HTTP tunneling flaw that lets an attacker escalate privileges and send HTTP requests from the backend server. CISA lists it as actively exploited, and the KEV entry notes known ransomware use.","severity":"critical","cvss":9.9,"epss":null,"exploited":true,"exploited_at":"2025-01-13T00:00:00+00:00","products":[{"name":"Qlik Sense","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= august_2022","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= august_2023","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= february_2022","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= february_2023","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= may_2022","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= may_2023","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= november_2021","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= november_2022","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","other","qlik-sense","ransomware","self-hosted"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Apply mitigations per vendor instructions, or discontinue use of the product if mitigations are unavailable (per CISA required action).","status":"open","published_at":"2023-11-15T22:15:28+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:52:43+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-23T20:52:43Z","model":"claude-haiku-5-5","output":{"fix":"Apply mitigations per vendor instructions, or discontinue use of the product if mitigations are unavailable (per CISA required action).","reach":"unknown","impact":"high","summary":"Qlik Sense contains an HTTP tunneling flaw that lets an attacker escalate privileges and send HTTP requests from the backend server. CISA lists it as actively exploited, and the KEV entry notes known ransomware use.","category":"other","who_cares":["qlik-sense","self-hosted"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Attacker escalates privileges and reaches backend server over HTTP","analyst_note":"Find Qlik's advisory and the affected/fixed Qlik Sense versions and mitigation steps via the CISA KEV link; the sources give no versions or check method.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000442,"input_tokens":2629,"output_tokens":358,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2023':20A,23A,188C '-21683':18A,104C '-41265':189C '-48365':21A,24A '10':155C '12':159C '14':163C '15':171C '16':167C '17':176C '2':10A,96C,147C '2021':174C '2022':157C,161C,165C,169C '2023':8A,94C,145C,149C,153C '6':151C 'abl':116C 'activ':77B 'aka':16A,102C 'allow':11A,97C,125C 'applic':139C 'attack':62B,114C 'august':7A,93C,144C,160C 'backend':71B,133C 'cisa':73B 'code':14A,100C 'contain':54B 'cve':19A,22A,187C 'due':105C 'elev':118C 'enterpris':3A,89C 'entri':82B 'escal':63B 'execut':15A,101C,128C 'exist':180C 'exploit':43B,78B 'februari':152C,168C 'fix':141C,185C 'flaw':58B 'header':111C 'host':51B,136C 'http':56B,67B,110C,123C,129C 'improp':107C 'incomplet':184C 'issu':179C 'kev':81B 'known':84B 'let':60B 'list':74B 'may':148C,164C 'note':83B,177C 'novemb':156C,173C 'patch':9A,95C,146C,150C,154C,158C,162C,166C,170C,175C 'privileg':64B,120C 'qb':17A,103C 'qlik':1A,25A,27A,29A,31A,33A,35A,37A,39A,41A,46B,52B,87C 'qlik-sens':45B 'ransomwar':48B,85B 'remot':13A,99C,113C 'repositori':138C 'request':68B,124C,130C 'self':50B 'self-host':49B 'send':66B 'sens':2A,47B,53B,88C 'sense':26A,28A,30A,32A,34A,36A,38A,40A,42A 'server':72B,134C 'tunnel':57B,122C 'unauthent':12A,98C 'use':86B 'valid':108C 'version':142C 'window':5A,91C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2023-11-15T22:15:28+00:00","kev":{"dateAdded":"2025-01-13","dueDate":"2025-02-03","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Known"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","cvss_by":"cve@mitre.org","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2023-48365","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-48365","severity":null,"published_at":"2025-01-13T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T20:35:33+00:00","note":null},{"source":"nvd","external_id":"CVE-2023-48365","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-48365","severity":null,"published_at":"2023-11-15T22:15:28+00:00","modified_at":"2026-06-17T06:34:06+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}