CVE-2021-24155— Backup Guard < 1.6.0 - Authenticated Arbitrary File Upload
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I. Basic Information for CVE-2021-24155
Vulnerability Information
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Vulnerability Title
Backup Guard < 1.6.0 - Authenticated Arbitrary File Upload
Source: NVD (National Vulnerability Database)
Vulnerability Description
The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
危险类型文件的不加限制上传
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是WordPress（Wordpress）基金会的一套使用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 Backup and Migrate Plugin Backup Guard before 1.6.0 存在代码问题漏洞，该漏洞源于没有确保导入的文件是SGBP格式和扩展名，允许高权限用户(admin+)上传任意文件，包括PHP文件，导致了RCE。
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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | WordPress Backup and Migrate Plugin – Backup Guard | 1.6.0 ~ 1.6.0 | - |
II. Public POCs for CVE-2021-24155
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | WordPress Backup Guard Authenticated Remote Code Execution Exploit | https://github.com/0dayNinja/CVE-2021-24155.rb | POC Details |
| 2 | WordPress Backup Guard plugin before 1.6.0 is susceptible to authenticated arbitrary file upload. The plugin does not ensure that imported files are in SGBP format and extension, allowing high-privilege users to upload arbitrary files, including PHP, possibly leading to remote code execution. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24155.yaml | POC Details |
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- https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fbx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-24155
Same Patch Batch · Unknown · 2021-04-05 · 45 CVEs total
| CVE-2021-24163 | Ninja Forms < 3.4.34 - Authenticated SendWP Plugin Installation and Client Secret Key Disc | |
| CVE-2021-24166 | Ninja Forms < 3.4.34 - CSRF to OAuth Service Disconnection | |
| CVE-2021-24165 | Ninja Forms < 3.4.34 - Administrator Open Redirect | |
| CVE-2021-24167 | Web-Stat < 1.4.1 - API Key Disclosure | |
| CVE-2021-24153 | Yoast SEO < 3.4.1 - Authenticated Stored Cross-Site Scripting (XSS) | |
| CVE-2021-24154 | Theme Editor < 2.6 - Authenticated Arbitrary File Download | |
| CVE-2021-24156 | Testimonial Rotator <= 3.0.3 - Authenticated Stored Cross-Site Scripting | |
| CVE-2021-24157 | Orbit Fox by ThemeIsle < 2.10.3 - Authenticated Stored Cross Site Scripting | |
| CVE-2021-24158 | Orbit Fox by ThemeIsle < 2.10.3 - Authenticated Privilege Escalation | |
| CVE-2021-24152 | Popup Builder < 3.74 - Authenticated Reflected Cross-Site Scripting (XSS) | |
| CVE-2021-24164 | Ninja Forms < 3.4.34.1 - Authenticated OAuth Connection Key Disclosure | |
| CVE-2021-24159 | Contact Form 7 Style <= 3.1.9 - Cross-Site Request Forgery to Stored Cross-Site Scripting | |
| CVE-2021-24176 | JH 404 Logger <= 1.1 - Unauthenticated Stored Cross-Site Scripting (XSS) | |
| CVE-2021-24175 | The Plus Addons for Elementor Page Builder < 4.1.7 - Authentication Bypass | |
| CVE-2021-24174 | Database Backups <= 1.2.2.6 - CSRF to Backup Download | |
| CVE-2021-24173 | VM Backups <= 1.0 - CSRF to Stored Cross-Site Scripting (XSS) | |
| CVE-2021-24172 | VM Backups <= 1.0 - CSRF to Database Backup Download | |
| CVE-2021-24171 | WooCommerce Upload Files < 59.4 - Unauthenticated Arbitrary File Upload | |
| CVE-2021-24170 | User Profile Picture < 2.5.0 - Sensitive Information Disclosure | |
| CVE-2021-24169 | Advanced Order Export For WooCommerce < 3.1.8 - Reflected Cross-Site Scripting (XSS) |
Showing top 20 of 45 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: Unknown
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Frontend File Manager Plugin <= 23.6 - Subscriber+ Arbitrary - CVE-2026-5306
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Same weakness: CWE-434
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TextPattern CMS 4.8.7 Remote Code Execution via File Upload - CVE-2021-47937
e107 CMS 2.3.0 Authenticated Remote Code Execution via Theme - CVE-2026-41517
Emlog: Remote Code Execution via Malicious Plugin Upload - CVE-2026-6692
Slider Revolution 7.0.0 - 7.0.10 - Authenticated (Subscriber - CVE-2026-41587
CI4MS: Unrestricted PHP File Upload via Theme Installation L
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