CVE-2026-33302
Discovered by AISLEPUBLISHEDCWE-863
Description
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, the module ACL function `AclMain::zhAclCheck()` only checks for the presence of any "allow" (user or group). It never checks for explicit "deny" (allowed=0). As a result, administrators cannot revoke access by setting a user or group to "deny"; if the user is in a group that has "allow," access is granted regardless of explicit denies. Version 8.0.0.2 fixes the issue.
CVSS Base Scores
CVSS v4.07.3
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:P
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| openemr | openemr | < 8.0.0.2 | affected |