Dashboard / CVE-2026-124484

CVE-2026-124484

HIGH
MEDIUM Priority: 0.02 BB Relevance: 67/100
Published: 2026-11-08 Modified: 2026-11-13 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

OpenEMR before 8.4.0 contains a missing authorization vulnerability in portal onsite-document APIs that allows any authenticated core user to access cross-patient documents. Attackers can omit the patientId parameter and supply arbitrary record IDs to list, read, and overwrite other patients' portal documents, signatures, and template data.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
openemr openemr 0 < 8.4.0
openemr openemr 0 < 8.4.0

References & Advisories (2)

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.25%
Raw Score 0.002460
Percentile 16.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00246
2026-11-12
0.00246
2026-11-10
0.00246
2026-11-09
0.00246

Intelligence Sources

mitre ref →
nvd ref →

External Links