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CVE-2023-6266— Backup Migration <= 1.3.6 - Unauthenticated Arbitrary Backup Download to Sensitive Information Exposure

Quick assessment

Affected
inisev BackupBliss – Backup & Migration with Free Cloud Storage
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress Plugin Backup Migration 1.3.6 版本及之前版本存在安全漏洞，该漏洞源于handle_downloading 函数的路径和文件验证不足，可能导致未经授权的数据访问。

CVSS 7.5 · High EPSS 2.05% · P81

Public Exploits 1

Nuclei · 1 CVE-2023-6266.yaml [template]
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I. Basic Information for CVE-2023-6266

Vulnerability Information
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Vulnerability Title
Backup Migration <= 1.3.6 - Unauthenticated Arbitrary Backup Download to Sensitive Information Exposure
Source: CVE Program / CVE List V5
Vulnerability Description
The Backup Migration plugin for WordPress is vulnerable to unauthorized access of data due to insufficient path and file validation on the BMI_BACKUP case of the handle_downloading function in all versions up to, and including, 1.3.6. This makes it possible for unauthenticated attackers to download back-up files which can contain sensitive information such as user passwords, PII, database credentials, and much more.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Plugin Backup Migration 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress Plugin Backup Migration 1.3.6 版本及之前版本存在安全漏洞，该漏洞源于handle_downloading 函数的路径和文件验证不足，可能导致未经授权的数据访问。
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
migrate Backup Migration * ~ 1.3.6 -

II. Public POCs for CVE-2023-6266

# POC Description Source Link Shenlong Link
1 WordPress Backup Migration plugin versions up to 1.3.6 contain a path traversal and file validation issue in handle_downloading function, letting unauthenticated attackers download backup files containing sensitive information. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-6266.yaml POC Details
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III. Intelligence Information for CVE-2023-6266

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Patches & Fixes for CVE-2023-6266 (3)

Vendor Advisories for CVE-2023-6266 (1)

IV. Related Vulnerabilities

Same product: BackupBliss – Backup & Migration with Free Cloud Storage
Same vendor: inisev
Same weakness: CWE-200

V. Comments for CVE-2023-6266

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