PHP
CVE-2026-25220
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionGitHub Advisory
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the Message Center accepts the URL parameter show_all=yes and passes it to getPnotesByUser(), which returns all internal messages (all users’ notes). The backend does not verify that the requesting user is an administrator before honoring show_all=yes. The "Show All" link is also visible to non-admin users. As a result, any authenticated user can view the entire internal message list by requesting messages.php?show_all=yes. Version 8.0.0 patches the issue.
AnalysisAI
OpenEMR versions prior to 8.0.0 allow any authenticated user to view all internal messages and notes from other users by exploiting insufficient authorization checks on the Message Center's show_all parameter. The vulnerability exists because the application does not verify administrator privileges before returning the complete message list, enabling unauthorized disclosure of sensitive medical communications. Public exploit code exists for this medium-severity information disclosure vulnerability.
Technical ContextAI
This vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affects Openemr. OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the Message Center accepts the URL parameter show_all=yes and passes it to getPnotesByUser(), which returns all internal messages (all users’ notes). The backend does not verify that the requesting user is an administrator before honoring show_all=yes. The "Show All" link is also visible to non-admin users. As a result, any authenticated user can view the entire
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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External POC / Exploit Code
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