CVE-2023-2947

Deeper analysis

CVE-2023-2947 is a stored cross-site scripting vulnerability (CWE-79) affecting the OpenEMR electronic health records platform in the openemr/openemr repository prior to version 7.0.1. The flaw permits an attacker to persistently inject malicious script into application pages that are later rendered for other users, with a CVSS 3.1 base score of 4.8 reflecting network attack vector, low complexity, high privileges required, and changed scope.

An authenticated user holding high privileges can supply crafted input that is stored by the application and subsequently executed in the browsers of other users who view the affected content. Successful exploitation can result in limited confidentiality and integrity impacts such as session token theft or unauthorized actions performed in the context of the victim user, though availability is unaffected and user interaction is required.

Public references point to a specific commit (8d2d601) that addresses the issue and to the corresponding huntr.dev disclosure. The recommended mitigation is to upgrade OpenEMR to version 7.0.1 or later, which incorporates the corrective changes.

EPSS for the CVE has remained flat at its recorded peak of 0.5248 with no material post-disclosure rise.