Is there a public exploit for CVE-2026-126493?

No public exploit for CVE-2026-126493 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-2026-126493?

CVE-2026-126493 scores CVSS 4.8 (v4.0), rated medium.

What does CVE-2026-126493 affect?

CVE-2026-126493 affects OpenEMR OpenEMR.

4.8 Medium

OpenEMR before 8.5.0 contains a stored cross-site scripting vulnerability that allows low-privileged patient portal users to inject…

CVE-2026-126493

OpenEMR before 8.5.0 contains a stored cross-site scripting vulnerability that allows low-privileged patient portal users to inject JavaScript via the tableArgs field of the onsiteportalactivity API. Attackers can store a payload with spaces that breaks out of an unquoted data-delete-id attribute, executing script when providers click the delete button on the audit review page.

Assessment

CVSS: 4.8 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 13 November 2026
Last updated: 13 November 2026
Affected: OpenEMR · OpenEMR
Assigner: VulnCheck

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

At the source

EUVD (ENISA)

References

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