OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in portal/lib/persist.php that allows authenticated portal patients to write settings for other patients. Attackers can modify the settingpatient parameter in a JSON POST request to another patient's PID, altering that patient's portal settings such as the portal theme.

OpenEMR before 8.4.0 contains an authorization bypass vulnerability that allows patient-scoped SMART tokens to read other patients' questionnaire responses because FhirQuestionnaireResponseService does not implement IPatientCompartmentResourceService. Attackers holding a patient/QuestionnaireResponse.rs token can request responses by uuid or list the unfiltered bundle to obtain cross-patient clinical assessment answers.

OpenEMR before 8.3.0 contains a missing authorization vulnerability in the classic document controller that allows low-privilege authenticated users to recategorize other patients' documents. Attackers can invoke moveactionprocess to move a document into a patients|demo category, then retrieve it with an empty patientid to exfiltrate PHI and tamper with charts.

OpenEMR before 8.3.0 contains a missing authorization vulnerability in the addRecall action of /interface/main/messages/save.php that allows low-privileged authenticated users to modify arbitrary patients' recall data. Attackers can submit a crafted newpid with recall, contact, provider, facility, and notification preference fields to overwrite records of patients they cannot access.

OpenEMR before 8.4.0 contains an authorization bypass allowing low-privileged SMART standalone-launch users to bind arbitrary patient UUIDs into the OAuth token context. Attackers with only the patients|demo ACL can select a victim during authorization and read that patient's clinical notes and documents through patient-scoped DocumentReference and Binary FHIR endpoints.

OpenEMR before 8.4.0 contains an improper authorization vulnerability in the non-patient POST /fhir/DocumentReference/$docref route that allows low-privileged users to generate any patient's CCDA. Attackers with only demographics and documents permissions can supply a victim patient parameter, then download the full-chart CCDA from Patient Documents to exfiltrate clinical data.

OpenEMR before 8.4.0 contains an arbitrary local file read vulnerability in REST document download, where the controller passes stored uploaded document bytes to Symfony's BinaryFileResponse as a filesystem path instead of returning them as content. Authenticated users with document upload and download access can upload a document containing an absolute pathname, such as the sqlconf.php location, then download it to read server files and recover database credentials.

OpenEMR before 8.3.0 contains a path traversal vulnerability in the FaxSMS module's RCFaxClient and SignalWireClient disposeDocument functions that allows authenticated low-privilege users to read and overwrite arbitrary files via the unsanitized filepath parameter. Attackers can request action=download to retrieve cleartext files like sqlconf.php database credentials and keys, or use action=setup to overwrite web-server-writable files with ciphertext.

OpenEMR before 8.4.0 contains an incorrect authorization vulnerability because the prescription REST API routes check the patients.med ACL instead of patients.rx and request no specific permission bit, so read-only Medical/History access passes the check. Authenticated staff users can reuse the UI-exposed APICSRFTOKEN to enumerate prescription UUIDs, forge prescriptions for arbitrary patients, and deactivate existing prescriptions tenant-wide.

OpenEMR before 8.4.0 contains a mass assignment vulnerability in the patient portal OnsiteDocument query API that lets request parameters set bitwise criteria filters whose values are placed unquoted into the SQL WHERE clause. Authenticated patient portal users can inject SQL via parameters such as IdBitwiseAnd to read any database table, including other patients' records and staff password hashes.

OpenEMR before 8.3.0 contains an authorization bypass vulnerability in the patient portal onsitedocuments API that allows authenticated patients to read other patients' documents by overriding query criteria. Attackers can send empty pidEquals and denialReasonIsNotLike parameters to remove patient scoping and locked filters, exposing consent bodies, signatures, file paths, and template data.

OpenEMR before 8.3.0 contains an SQL injection vulnerability in the Fee Sheet drug-inventory lookup (DrugSalesService::sellDrug) that interpolates the prod[N][warehouse] POST field into an ORDER BY clause. Low-privileged authenticated users can submit Fee Sheet product lines with constant subqueries to run a time-based blind oracle, extracting patient data and userssecure bcrypt hashes.

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 docid. Low-privilege users can enumerate docid values with the fetch and save actions to disclose patient health information and tamper with medical records across all patients.

OpenEMR before 8.3.0 contains a stored cross-site scripting vulnerability that allows authenticated users with CAMOS access to inject HTML by saving malicious CAMOS content through ajaxsave.php. Attackers can store a script payload that executes unencoded when the entry is printed via the non-printhtml branch of rxprint.php, performing actions and reading data as the victim user.

OpenEMR before 8.3.0 contains a missing authorization vulnerability in interface/billing/sleobpatientnote.php that allows any authenticated user to read and modify patient billing notes. Attackers with low-privilege accounts can enumerate the patientid parameter and submit POST requests using the embedded CSRF token to view or tamper with confidential billing data.

OpenEMR before 8.3.0 contains a stored cross-site scripting vulnerability in the CCDA/CCD preview stylesheets, where cda.xsl copies event-handler attributes whose values evade a character denylist and ccd.xsl copies table-cell attributes unsanitized into preview HTML. Authenticated users can upload a crafted CCDA/CCD document with onmouseover, onclick, or onfocus handlers to execute script in a clinician's session when previewed.

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in OnsiteDocumentController::Query() that allows authenticated portal patients to read other patients' documents by overriding PidEquals criteria. Attackers can supply PidEquals, PidGreaterThan, or PidIn request parameters to the onsitedocuments API to retrieve signed consent forms, signatures, and PHI of any patient.

OpenEMR before 8.3.0 contains a broken object-level authorization vulnerability in the SOAP note update API, which does not verify that the supplied SOAP note ID (sid) belongs to the supplied patient and encounter. Authenticated users with encounters/notes permission can send PUT requests to /api/patient/:pid/encounter/:eid/soapnote/:sid with another patient's sid to overwrite that clinical note and reassign its pid.

OpenEMR before 8.3.0 contains a path traversal vulnerability in interface/billing/sleobprocess.php that allows authenticated users to write and read files by supplying unsanitized eraname values. Attackers without billing privileges can inject ../ sequences to create ERA report .html files anywhere the web user can write and parse arbitrary .edi files echoed into the report.

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in many encounter-form view and save endpoints that lack patient/encounter ownership checks. Authenticated clinical users can enumerate sequential form id values in requests such as soap/view.php and save.php to read and overwrite other patients' clinical records.

OpenEMR before 8.4.0 contains a local file inclusion in the ESign router (library/ESign/Router.php), which passes the unsanitized module parameter into a requireonce of '<module>/Controller.php', and the fax module's faxProcessUploads writes attacker-named files to a predictable temp path without extension checks. Authenticated attackers can upload a PHP file named Controller.php, then request interface/esign/index.php with a traversing module parameter to include it and execute arbitrary code.

OpenEMR before 8.4.0 contains an authorization bypass vulnerability in the FHIR GET /fhir/Person/:uuid route that allows patient-portal users to read any staff member's demographics by bypassing compartment enforcement. Attackers holding a patient SMART token with patient/Person.read can harvest staff Person UUIDs from Appointment references to retrieve names, home addresses, phone numbers, and personal emails.

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in OnsiteDocumentController::Query() that allows authenticated portal patients to bypass the lowercase pid authorization guard by supplying a capitalised Pid parameter. Attackers can request the api/onsitedocuments endpoint with Pid set to another patient's id to overwrite the session-pinned criteria and read other patients' onsite documents containing PHI.

OpenEMR before 8.3.0 contains an SQL injection vulnerability in the Standard REST API patient insurance and employer search, which concatenates query-string parameter names into SQL as column identifiers without escaping. Authenticated clients, including low-privilege patient-portal OAuth2 tokens, can send crafted parameter names to /api/patient/{puuid}/insurance or /api/patient/{puuid}/employer to extract patient PHI, user records, and API client secrets.

OpenEMR before 8.3.0 contains a broken access control vulnerability in portal/portalpayment.php that allows low-privilege authenticated users to bypass billing ACL checks by tampering patient identifiers. Attackers can modify the pid and formpid parameters to view payment pages and record fraudulent payment receipts for arbitrary patients, corrupting billing records.

OpenEMR before 8.3.0 contains a stored cross-site scripting vulnerability in interface/forms/eyemag/report.php that allows authenticated users to inject scripts by adding unescaped document notes. Attackers with document-note write access can store malicious JavaScript in a retina document note that executes when clinicians generate the Eye Exam patient report, exposing session cookies.

OpenEMR before 8.3.0 contains an insecure direct object reference in portal/lib/paylib.php, which writes the request-supplied formpid (or the patientidcc value in Sphere data) to onsiteportalactivity without checking it against the session patient. Authenticated portal patients can submit portal-save, review-save, AuthorizeNet, Stripe, or Sphere requests to insert or modify forged payment-audit records in other patients' billing records.

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in portal/lib/persist.php that allows authenticated portal patients to modify other patients' settings by supplying an arbitrary settingpatient value. Attackers can insert or overwrite patientsettings rows for victims to suppress notifications, tamper with consent flags, or alter portal preferences.

OpenEMR before 8.4.0 contains an authorization bypass vulnerability that allows low-privileged authenticated users to read cross-patient FHIR QuestionnaireResponse data by sending the APICSRFTOKEN header. Attackers can reuse the session-exposed apicsrftokenjs value to skip FHIR scope checks and call GET /fhir/QuestionnaireResponse, exfiltrating site-wide questionnaire answer PHI.

OpenEMR before 8.3.0 contains a broken access control and path traversal vulnerability in the fax/sms module disposeDocument action via an unvalidated filepath parameter. Authenticated low-privilege users can read sqlconf.php to recover database credentials and write arbitrary files as the web user, enabling remote code execution.