CVE-2026-126481

HIGH
MEDIUM Priority: 0.04 BB Relevance: 64/100
Published: 2026-11-13 Modified: 2026-11-13 First seen: 2026-11-13 Status: active

Attack Surface

Network Low Complexity No Interaction Integ. Impact

CVSS Vector Breakdown

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

Description

OpenEMR before 8.5.0 contains a path traversal vulnerability in era_payments.php and sl_eob_search.php that allows authenticated billing users to write files outside the ERA directory. Attackers can embed traversal sequences in the GS04 element of an uploaded X12 835 file to overwrite .edi or .835 files with attacker-controlled content anywhere writable by the web server.

Affected Software (2)

VendorProductVersion
openemr openemr 0 < 8.5.0
openemr openemr 0 < 8.5.0

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.2 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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

0.50%
Raw Score 0.004950
Percentile 43.0%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00495
2026-11-13
0.00526

Intelligence Sources

mitre ref →
nvd ref →