Is there a public exploit for CVE-2026-124453?

No public exploit for CVE-2026-124453 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-124453?

CVE-2026-124453 scores CVSS 7.1 (v4.0), rated high.

What does CVE-2026-124453 affect?

CVE-2026-124453 affects OpenEMR OpenEMR.

7.1 High

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in portal/lib/persist.php that allows authenticated portal…

CVE-2026-124453

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in portal/lib/persist.php that allows authenticated portal patients to write settings for other patients. Attackers can modify the settingpatient parameter in a JSON POST request to another patient's PID, altering that patient's portal settings such as the portal theme.

Assessment

CVSS: 7.1 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 8 November 2026
Last updated: 8 November 2026
Affected: OpenEMR · OpenEMR
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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