CVE-2026-40506

HIGH
MEDIUM Priority: 0.05 BB Relevance: 59/100
Published: 2026-08-17 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Interaction Integ. Impact

CVSS Vector Breakdown

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

Description

OpenEMR before 8.2.0 contains a path traversal vulnerability in the standard_tables_manage.php interface where the db GET parameter is passed without validation to temp_dir_cleanup(), which joins the value to the PHP temporary directory path and recursively deletes the resulting directory. Attackers can supply a traversal sequence in the db parameter to resolve outside the intended temporary directory, and by chaining this with an open redirect in dicom_frame.php, an unauthenticated attacker can deliver a crafted URL that triggers arbitrary recursive directory deletion within an authenticated Superuser's session.

Affected Software (1)

VendorProductVersion
openemr openemr 0 < 8.2.0

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.0 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.70%
Raw Score 0.006990
Percentile 53.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00699
2026-11-12
0.00699
2026-11-10
0.00699
2026-11-09
0.00699
2026-11-08
0.00699

Intelligence Sources

mitre ref →