PHP
CVE-2026-25476
HIGH
Severity by source
AV:N/AC:L/PR:N/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:N/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 session expiration check in library/auth.inc.php runs only when skip_timeout_reset is not present in the request. When skip_timeout_reset=1 is sent, the entire block that calls SessionTracker::isSessionExpired() and forces logout on timeout is skipped. As a result, any request that includes this parameter (e.g. from auto-refresh pages like the Patient Flow Board) never runs the expiration check: expired sessions can continue to access data indefinitely, abandoned workstations stay active, and an attacker with a stolen session cookie can keep sending skip_timeout_reset=1 to avoid being logged out. Version 8.0.0 fixes the issue.
AnalysisAI
OpenEMR prior to version 8.0.0 fails to enforce session expiration when the skip_timeout_reset parameter is present in requests, allowing expired sessions to remain active indefinitely. An attacker with a stolen session cookie can exploit this by continuously sending the skip_timeout_reset parameter to maintain unauthorized access to sensitive health records without being logged out. Public exploit code exists for this vulnerability with a CVSS score of 7.5.
Technical ContextAI
Classified as CWE-613 (Insufficient Session Expiration). Affects Openemr. OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the session expiration check in library/auth.inc.php runs only when skip_timeout_reset is not present in the request. When skip_timeout_reset=1 is sent, the entire block that calls SessionTracker::isSessionExpired() and forces logout on timeout is skipped. As a result, any request that includes this parameter (e.g. from auto-refresh pages like the Patient Flow
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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Same weakness CWE-613 – Insufficient Session Expiration
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External POC / Exploit Code
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