{"id":"CVE-2023-41266","kind":"vulnerability","aliases":["CVE-2023-41266"],"related":[],"title":"A path traversal vulnerability found in Qlik Sense Enterprise for Windows for versions May 2023 Patch 3 and earlier,…","description":"A path traversal 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 an unauthenticated remote attacker to generate an anonymous session. This allows them to transmit HTTP requests to unauthorized endpoints. This is fixed in August 2023 IR, May 2023 Patch 4, February 2023 Patch 8, November 2022 Patch 11, and August 2022 Patch 13.","summary":"Qlik Sense has a path traversal flaw that lets a remote, unauthenticated attacker create an anonymous session with crafted HTTP requests. That session can then reach endpoints that should be restricted to authorized users.","severity":"high","cvss":8.2,"epss":null,"exploited":true,"exploited_at":"2023-12-07T00:00:00+00:00","products":[{"name":"Qlik Sense","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= august_2022","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= february_2023","ecosystem":"vendor"},{"name":"qlik sense","fixed":[],"affected":"= may_2023","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 the vendor remediation or mitigation for CVE-2023-41266 per Qlik's instructions, or stop using the product if no fix is available (per CISA KEV required action).","status":"open","published_at":"2023-08-29T23:15:09+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T21:02:40+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-23T21:02:40Z","model":"claude-haiku-5-5","output":{"fix":"Apply the vendor remediation or mitigation for CVE-2023-41266 per Qlik's instructions, or stop using the product if no fix is available (per CISA KEV required action).","reach":"internet","impact":"high","summary":"Qlik Sense has a path traversal flaw that lets a remote, unauthenticated attacker create an anonymous session with crafted HTTP requests. That session can then reach endpoints that should be restricted to authorized users.","category":"other","who_cares":["qlik-sense","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"unauthenticated attacker reaches restricted endpoints via anonymous session","analyst_note":"Find Qlik's advisory and affected/fixed Qlik Sense versions and the exact mitigation steps; check the CISA KEV entry and Qlik security bulletins.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00047,"input_tokens":2856,"output_tokens":369,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2023':21A,24A '-41266':22A,25A '10':107C '11':155C '12':114C '13':160C '2022':105C,112C,153C,158C '2023':15A,93C,99C,142C,145C,149C '3':17A,95C '4':147C '7':101C '8':151C 'allow':117C,128C 'anonym':60B,125C 'attack':57B,121C 'august':111C,141C,157C 'author':77B 'craft':63B 'creat':58B 'cve':20A,23A 'earlier':19A,97C,103C,109C,116C 'endpoint':71B,136C 'enterpris':9A,87C 'exploit':36B 'februari':98C,148C 'fix':139C 'flaw':51B 'found':5A,83C 'generat':123C 'host':44B 'http':64B,132C 'ir':143C 'let':53B 'may':14A,92C,144C 'novemb':104C,152C 'patch':16A,94C,100C,106C,113C,146C,150C,154C,159C 'path':2A,49B,80C 'qlik':7A,26A,28A,30A,32A,34A,39B,45B,85C 'qlik-sens':38B 'ransomwar':41B 'reach':70B 'remot':55B,120C 'request':65B,133C 'restrict':75B 'self':43B 'self-host':42B 'sens':8A,40B,46B,86C 'sense':27A,29A,31A,33A,35A 'session':61B,67B,126C 'transmit':131C 'travers':3A,50B,81C 'unauthent':56B,119C 'unauthor':135C 'user':78B 'version':13A,91C 'vulner':4A,82C 'window':11A,89C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2023-08-29T23:15:09+00:00","kev":{"dateAdded":"2023-12-07","dueDate":"2023-12-28","requiredAction":"Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.","knownRansomwareCampaignUse":"Known"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","cvss_by":"cve@mitre.org","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2023-41266","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-41266","severity":null,"published_at":"2023-12-07T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T15:39:41+00:00","note":null},{"source":"nvd","external_id":"CVE-2023-41266","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-41266","severity":null,"published_at":"2023-08-29T23:15:09+00:00","modified_at":"2026-08-05T05:16:40+00:00","first_seen_at":"2026-10-23T22:29:04+00:00","fetched_at":"2026-10-23T22:29:04+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"}