{"id":"CVE-2026-124461","kind":"vulnerability","aliases":["CVE-2026-124461"],"related":[],"title":"OpenEMR: any logged-in user can read and overwrite patient documents","description":"OpenEMR before 8.3.0 contains a missing authorization vulnerability in library/ajax/upload.php that allows any authenticated user to read and overwrite document data by supplying an arbitrary doc_id. Low-privilege users can enumerate doc_id values with the fetch and save actions to disclose patient health information and tamper with medical records across all patients.","summary":"OpenEMR before 8.3.0 lets any authenticated user supply an arbitrary doc_id to library/ajax/upload.php and read or overwrite that document. Low-privilege users can enumerate document IDs to expose patient health information and alter medical records across all patients.","severity":"high","cvss":8.6,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["healthcare","openemr","other","php","self-hosted"],"not_affected_if":["openemr-8.3.0-or-later"],"how_to_check":"- Check the installed OpenEMR version; versions before `8.3.0` are in scope.\n- Review access to `library/ajax/upload.php` in your web server logs for fetch and save requests with varying doc_id values.","fix":"- OpenEMR: move to `8.3.0` or later.","status":"open","published_at":"2026-11-08T14:18:13+00:00","first_seen_at":"2026-11-08T14:48:40+00:00","triaged_at":"2026-11-08T14:49:13+00:00","updated_at":"2026-11-08T14:49:13+00:00","category":"other","confidence":0.8,"triage":{"at":"2026-11-08T14:49:13Z","model":"claude-haiku-5-5","output":{"fix":"- OpenEMR: move to `8.3.0` or later.","reach":"network","title":"OpenEMR: any logged-in user can read and overwrite patient documents","impact":"high","summary":"OpenEMR before 8.3.0 lets any authenticated user supply an arbitrary doc_id to library/ajax/upload.php and read or overwrite that document. Low-privilege users can enumerate document IDs to expose patient health information and alter medical records across all patients.","audience":"businesses","category":"other","nicknames":[],"who_cares":["openemr","healthcare","self-hosted","php"],"confidence":0.8,"fix_status":"available","needs_auth":"yes","worst_case":"Attacker reads and overwrites patient documents across all patients","analyst_note":"","how_to_check":"- Check the installed OpenEMR version; versions before `8.3.0` are in scope.\n- Review access to `library/ajax/upload.php` in your web server logs for fetch and save requests with varying doc_id values.","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":["openemr-8.3.0-or-later"],"who_is_affected":"Any deployment of OpenEMR before 8.3.0 with user accounts, including low-privilege staff accounts, is exposed. The sources do not say whether non-default configuration is required, so treat all versions before 8.3.0 as affected.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000718,"input_tokens":4615,"output_tokens":512,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-124461':15A,18A '-2026':14A,17A '8.3.0':28B,68C 'across':63B,118C 'action':107C 'allow':77C 'alter':60B 'arbitrari':35B,90C 'authent':31B,79C 'author':72C 'contain':69C 'cve':13A,16A 'data':86C 'disclos':109C 'doc':36B,91C,99C 'document':12A,45B,52B,85C 'enumer':51B,98C 'expos':55B 'fetch':104C 'health':57B,111C 'healthcar':19B 'host':25B 'id':37B,53B,92C,100C 'inform':58B,112C 'let':29B 'library/ajax/upload.php':39B,75C 'log':4A 'logged-in':3A 'low':47B,94C 'low-privileg':46B,93C 'medic':61B,116C 'miss':71C 'openemr':1A,20B,26B,66C 'overwrit':10A,43B,84C 'patient':11A,56B,65B,110C,120C 'php':22B 'privileg':48B,95C 'read':8A,41B,82C 'record':62B,117C 'save':106C 'self':24B 'self-host':23B 'suppli':33B,88C 'tamper':114C 'user':6A,32B,49B,80C,96C 'valu':101C 'vulner':73C","nicknames":[],"mitigations":[],"who_affected":"Any deployment of OpenEMR before 8.3.0 with user accounts, including low-privilege staff accounts, is exposed. The sources do not say whether non-default configuration is required, so treat all versions before 8.3.0 as affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["healthcare","high","openemr","other","php","selfhosted"],"campaign_type":null,"search_a":"'-124461':15A,18A '-2026':14A,17A 'cve':13A,16A 'document':12A 'log':4A 'logged-in':3A 'openemr':1A 'overwrit':10A 'patient':11A 'read':8A 'user':6A","search_b":"'8.3.0':28B 'across':63B 'alter':60B 'arbitrari':35B 'authent':31B 'doc':36B 'document':45B,52B 'enumer':51B 'expos':55B 'health':57B 'healthcar':19B 'host':25B 'id':37B,53B 'inform':58B 'let':29B 'library/ajax/upload.php':39B 'low':47B 'low-privileg':46B 'medic':61B 'openemr':20B,26B 'overwrit':43B 'patient':56B,65B 'php':22B 'privileg':48B 'read':41B 'record':62B 'self':24B 'self-host':23B 'suppli':33B 'user':32B,49B","search_c":"'8.3.0':68C 'across':118C 'action':107C 'allow':77C 'arbitrari':90C 'authent':79C 'author':72C 'contain':69C 'data':86C 'disclos':109C 'doc':91C,99C 'document':85C 'enumer':98C 'fetch':104C 'health':111C 'id':92C,100C 'inform':112C 'library/ajax/upload.php':75C 'low':94C 'low-privileg':93C 'medic':116C 'miss':71C 'openemr':66C 'overwrit':84C 'patient':110C,120C 'privileg':95C 'read':82C 'record':117C 'save':106C 'suppli':88C 'tamper':114C 'user':80C,96C 'valu':101C 'vulner':73C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-08-18T09:03:09+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/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-2026-124461","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124461","severity":null,"published_at":"2026-11-08T14:18:13+00:00","modified_at":"2026-11-08T14:18:13+00:00","first_seen_at":"2026-11-08T14:48:40+00:00","fetched_at":"2026-11-08T14:48:40+00:00","note":null}],"documents":[{"id":102105,"url":"https://github.com/openemr/openemr/security/advisories/GHSA-7h7v-29jv-527v","title":"Vendor advisory: github.com","kind":"vendor","source":"nvd","publisher":"vendor","text":null,"published_at":"2026-08-18T09:03:09+00:00","relation":"advisory","confidence":null,"note":"Vendor advisory: github.com"},{"id":102106,"url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-via-dicom-library-ajax-upload-php-endpoint","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"}