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CVE-2026-40506— OpenEMR Path Traversal Arbitrary Directory Deletion via standard_tables_manage.php

Quick assessment

Affected
openemr openemr
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

openemr是OpenEMR组织开源的一个支持文档管理与企业应用场景的医疗信息管理平台。 OpenEMR 8.2.0之前版本存在路径遍历漏洞，该漏洞源于standard_tables_manage.php接口中db GET参数未经验证直接传递给temp_dir_cleanup()，将参数值拼接到PHP临时目录路径并递归删除结果目录，攻击者可利用db参数中的路径遍历序列解析到预期临时目录之外，并结合dicom_frame.php中的开放重定向，在已认证的超级用户会话中触发任意递归目录删除。

CVSS 6.5 · Medium EPSS 0.45% · P37

Affected Version Matrix 1

VendorProduct Version RangeStatus
openemr openemr < 8.2.0 affected
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I. Basic Information for CVE-2026-40506

Vulnerability Information
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Vulnerability Title
OpenEMR Path Traversal Arbitrary Directory Deletion via standard_tables_manage.php
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenEMR 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openemr是OpenEMR组织开源的一个支持文档管理与企业应用场景的医疗信息管理平台。 OpenEMR 8.2.0之前版本存在路径遍历漏洞，该漏洞源于standard_tables_manage.php接口中db GET参数未经验证直接传递给temp_dir_cleanup()，将参数值拼接到PHP临时目录路径并递归删除结果目录，攻击者可利用db参数中的路径遍历序列解析到预期临时目录之外，并结合dicom_frame.php中的开放重定向，在已认证的超级用户会话中触发任意递归目录删除。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openemr openemr 0 ~ 8.2.0 -

II. Public POCs for CVE-2026-40506

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III. Intelligence Information for CVE-2026-40506

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Patches & Fixes for CVE-2026-40506 (2)

Vendor Advisories for CVE-2026-40506 (2)

Vendor Pages for CVE-2026-40506 (1)

IV. Related Vulnerabilities

Same product: openemr
Same vendor: openemr
Same weakness: CWE-22

V. Comments for CVE-2026-40506

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