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CVE-2024-8856— Backup and Staging by WP Time Capsule <= 1.22.21 - Unauthenticated Arbitrary File Upload

Quick assessment

Affected
revmakx Backup and Staging by WP Time Capsule
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 and Staging by WP Time Capsule 1.22.21版本及之前版本存在代码问题漏洞，该漏洞源于UploadHandler.php文件中缺少文件类型验证且没有直接文件访问预防，因此导致任意文

CVSS 9.8 · Critical EPSS 94.14% · P100
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I. Basic Information for CVE-2024-8856

Vulnerability Information
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Vulnerability Title
Backup and Staging by WP Time Capsule <= 1.22.21 - Unauthenticated Arbitrary File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the the UploadHandler.php file and no direct file access prevention in all versions up to, and including, 1.22.21. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Backup and Staging by WP Time Capsule 代码问题漏洞
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 and Staging by WP Time Capsule 1.22.21版本及之前版本存在代码问题漏洞，该漏洞源于UploadHandler.php文件中缺少文件类型验证且没有直接文件访问预防，因此导致任意文
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
revmakx Backup and Staging by WP Time Capsule * ~ 1.22.21 -

II. Public POCs for CVE-2024-8856

# POC Description Source Link Shenlong Link
1 WordPress WP Time Capsule Plugin Arbitrary File Upload Vulnerability https://github.com/ubaii/CVE-2024-8856 POC Details
2 This tool scans WordPress websites for vulnerabilities in the WP Time Capsule plugin related to CVE-2024-8856. It identifies plugin versions below 1.22.22 as vulnerable and logs results to vuln.txt. Simple and efficient, it helps security researchers and admins detect and address risks quickly. https://github.com/Jenderal92/CVE-2024-8856 POC Details
3 WordPress WP Time Capsule Plugin Arbitrary File Upload Vulnerability https://github.com/ubaydev/CVE-2024-8856 POC Details
4 The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the the UploadHandler.php file and no direct file access prevention in all versions up to, and including, 1.22.21. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-8856.yaml POC Details
5 None https://github.com/Evillm/CVE-2024-8856-PoC POC Details
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III. Intelligence Information for CVE-2024-8856

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Patches & Fixes for CVE-2024-8856 (2)

IV. Related Vulnerabilities

Same product: Backup and Staging by WP Time Capsule
Same vendor: revmakx
Same weakness: CWE-434

V. Comments for CVE-2024-8856

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