HIGHCVSS v3.1 7.3Vulnerability

CVE-2026-126451

OpenEMR before 8.5.0 contains a stored cross-site scripting vulnerability that allows portal patients to run JavaScript in staff sessions by injecting javascript: URLs into document template_data. Attackers can submit an encounterForm value rendered unsanitized into an iframe src by DocumentTemplateRender, letting the script read PHI and CSRF tokens and call staff or admin endpoints.

Properties

Severity
HIGH
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Epss score
0.00367
Cvss severity
HIGH
Cvss score
7.3
Retrieved at
2026-11-14T00:51:03+00:00
Last source
FIRST EPSS
Score
7.3
Cvss version
3.1
Cve id
CVE-2026-126451
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
First seen by Signal
2026-11-13T17:31:47+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Published at
2026-11-13T10:17:52.993
Last modified
2026-11-13T16:18:34.653
Epss percentile
0.3095

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CVE-2026-126451 (CVSS v3.1 7.3) — Ninja Signal Threat Intelligence | Ninja Signal