CVE-2026-124483
OpenEMR before 8.4.0 Improper Authorization via Prescription REST API
CVSS Score
8.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-863 |
| Vendor | openemr |
| Product | openemr |
| Published | Nov 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for openemr openemr
Be the first to know when new high vulnerabilities affecting openemr openemr are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low
Affected Versions
openemr / openemr
0 < 8.4.0
References
Credits
christos-cantina-security