OpenEMR is a free and open source electronic health records and medical practice management application. Versions prior to 8.0.0.3 have a missing authorization check in `portal/sign/lib/show-signature.php` that allows any authenticated patient portal user to retrieve the drawn signature image of any staff member by supplying an arbitrary `user` value in the POST body. The companion write endpoint (`save-signature.php`) was already hardened against this same issue, but the read endpoint was not updated to match.
Version 8.0.0.3 patches the issue.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Open-Emr Openemr
cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*
|
— |
8.0.0.3
|
References 3
https://github.com/openemr/openemr/commit/ae7ee1872d2e6300b165e24687cc90cf6847a…
security-advisories@github.com
https://github.com/openemr/openemr/releases/tag/v8_0_0_3
security-advisories@github.com
https://github.com/openemr/openemr/security/advisories/GHSA-w9w5-7x6h-657q
security-advisories@github.com