{"id":"CVE-2026-126420","kind":"vulnerability","aliases":["CVE-2026-126420"],"related":[],"title":"OpenEMR: read-only users can create fake patient charts via FaxSMS","description":"OpenEMR before 8.5.0 contains a missing authorization vulnerability in the FaxSMS module's utility.php that allows read-only demographics users to create patient charts. Attackers can submit the form_create request with chosen identity fields to create fictitious or duplicate patients with employer, history, and insurance records.","summary":"OpenEMR's FaxSMS module fails to check permissions in utility.php, so users with read-only demographics access can create patient charts. An attacker can use this to add fictitious or duplicate patients with employer, history and insurance records.","severity":"medium","cvss":6.0,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["healthcare","openemr","other","self-hosted"],"not_affected_if":["openemr-8.5.0-or-later"],"how_to_check":"- Check the OpenEMR version in the installation; affected versions are those before `8.5.0`.\n- Confirm whether the FaxSMS module is enabled in the installation.","fix":"- OpenEMR: move to `8.5.0` or later.","status":"open","published_at":"2026-11-13T10:17:47+00:00","first_seen_at":"2026-11-13T10:47:21+00:00","triaged_at":"2026-11-13T10:56:39+00:00","updated_at":"2026-11-13T10:56:39+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-11-13T10:56:39Z","model":"claude-haiku-5-5","output":{"fix":"- OpenEMR: move to `8.5.0` or later.","reach":"network","title":"OpenEMR: read-only users can create fake patient charts via FaxSMS","impact":"medium","summary":"OpenEMR's FaxSMS module fails to check permissions in utility.php, so users with read-only demographics access can create patient charts. An attacker can use this to add fictitious or duplicate patients with employer, history and insurance records.","audience":"businesses","category":"other","nicknames":[],"who_cares":["openemr","healthcare","self-hosted"],"confidence":0.7,"fix_status":"available","needs_auth":"yes","worst_case":"Read-only users insert fake patient records with insurance data","analyst_note":"","how_to_check":"- Check the OpenEMR version in the installation; affected versions are those before `8.5.0`.\n- Confirm whether the FaxSMS module is enabled in the installation.","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":["openemr-8.5.0-or-later"],"who_is_affected":"Clinics and organisations running OpenEMR before 8.5.0 with the FaxSMS module, where users have read-only demographics access. The sources do not say whether the module is on by default. Installations on 8.5.0 or later are not affected.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000701,"input_tokens":4603,"output_tokens":482,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-126420':15A,18A '-2026':14A,17A '8.5.0':66C 'access':42B 'add':53B 'allow':79C 'attack':48B,89C 'author':70C 'chart':10A,46B,88C 'check':31B 'chosen':97C 'contain':67C 'creat':7A,44B,86C,94C,101C 'cve':13A,16A 'demograph':41B,83C 'duplic':56B,104C 'employ':59B,107C 'fail':29B 'fake':8A 'faxsm':12A,27B,74C 'fictiti':54B,102C 'field':99C 'form':93C 'healthcar':19B 'histori':60B,108C 'host':24B 'ident':98C 'insur':62B,110C 'miss':69C 'modul':28B,75C 'openemr':1A,20B,25B,64C 'patient':9A,45B,57B,87C,105C 'permiss':32B 'read':3A,39B,81C 'read-on':2A,38B,80C 'record':63B,111C 'request':95C 'self':23B 'self-host':22B 'submit':91C 'use':50B 'user':5A,36B,84C 'utility.php':34B,77C 'via':11A 'vulner':71C","nicknames":[],"mitigations":[],"who_affected":"Clinics and organisations running OpenEMR before 8.5.0 with the FaxSMS module, where users have read-only demographics access. The sources do not say whether the module is on by default. Installations on 8.5.0 or later are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["healthcare","medium","openemr","other","selfhosted"],"campaign_type":null,"search_a":"'-126420':15A,18A '-2026':14A,17A 'chart':10A 'creat':7A 'cve':13A,16A 'fake':8A 'faxsm':12A 'openemr':1A 'patient':9A 'read':3A 'read-on':2A 'user':5A 'via':11A","search_b":"'access':42B 'add':53B 'attack':48B 'chart':46B 'check':31B 'creat':44B 'demograph':41B 'duplic':56B 'employ':59B 'fail':29B 'faxsm':27B 'fictiti':54B 'healthcar':19B 'histori':60B 'host':24B 'insur':62B 'modul':28B 'openemr':20B,25B 'patient':45B,57B 'permiss':32B 'read':39B 'read-on':38B 'record':63B 'self':23B 'self-host':22B 'use':50B 'user':36B 'utility.php':34B","search_c":"'8.5.0':66C 'allow':79C 'attack':89C 'author':70C 'chart':88C 'chosen':97C 'contain':67C 'creat':86C,94C,101C 'demograph':83C 'duplic':104C 'employ':107C 'faxsm':74C 'fictiti':102C 'field':99C 'form':93C 'histori':108C 'ident':98C 'insur':110C 'miss':69C 'modul':75C 'openemr':64C 'patient':87C,105C 'read':81C 'read-on':80C 'record':111C 'request':95C 'submit':91C 'user':84C 'utility.php':77C 'vulner':71C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-10-28T02:17:40+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126420","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126420","severity":null,"published_at":"2026-11-13T10:17:47+00:00","modified_at":"2026-11-13T10:17:47+00:00","first_seen_at":"2026-11-13T10:47:21+00:00","fetched_at":"2026-11-13T10:47:21+00:00","note":null}],"documents":[{"id":145083,"url":"https://github.com/openemr/openemr/security/advisories/GHSA-ppg9-2f9f-chc4","title":"Vendor advisory: github.com","kind":"vendor","source":"nvd","publisher":"vendor","text":null,"published_at":"2026-10-28T02:17:40+00:00","relation":"advisory","confidence":null,"note":"Vendor advisory: github.com"},{"id":145084,"url":"https://www.vulncheck.com/advisories/openemr-before-8.5.0-missing-authorization-in-faxsms-utility-php-patient-creation","title":"Third-party advisory: www.vulncheck.com","kind":"advisory","source":"nvd","publisher":"research","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Third-party advisory: www.vulncheck.com"}],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}