CVE-2026-126493

EUVD-2026-125131
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 14.53%
Affected Products (NVD)
VendorProductVersion
open-emropenemr
𝑥
< 8.5.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/openemr/openemr/security/advisories/GHSA-r4hm-frcj-qr39
https://www.vulncheck.com/advisories/openemr-before-8.5.0-stored-xss-via-onsiteportalactivity-tableargs
https://github.com/openemr/openemr/security/advisories/GHSA-r4hm-frcj-qr39