Dashboard / CVE-2026-126451

CVE-2026-126451

HIGH
MEDIUM Priority: 0.03 BB Relevance: 57/100
Published: 2026-11-13 Modified: 2026-11-13 First seen: 2026-11-13 Status: active

Attack Surface

Network Low Complexity Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Passive
AT: None
VC: High
VI: High
VA: None

Description

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
openemr openemr 0 < 8.5.0
openemr openemr 0 < 8.5.0

References & Advisories (2)

Bug Bounty Relevance

57 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

8.5 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.37%
Raw Score 0.003710
Percentile 31.6%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00371
2026-11-13
0.00367

Intelligence Sources

mitre ref →
nvd ref →

External Links