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CVE-2021-4419— WP-Backgrounds Lite <= 2.3 - Cross-Site Request Forgery Bypass

Quick assessment

Affected
inoplugs WP-Backgrounds Lite
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.

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 WP-Backgrounds Lite 2.3版本及之前版本存在跨站请求伪造漏洞，该漏洞源于ino_save_data() 函数的随机数验证缺失或不正确，使未经身份验证的攻击者可以通过伪造的请求保存元数据，欺骗站点管理员执行单

CVSS 4.3 · Medium EPSS 0.39% · P32

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-4419

Vulnerability Information
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Vulnerability Title
WP-Backgrounds Lite <= 2.3 - Cross-Site Request Forgery Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
The WP-Backgrounds Lite plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.3. This is due to missing or incorrect nonce validation on the ino_save_data() function. This makes it possible for unauthenticated attackers to save meta data via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Plugin WP-Backgrounds Lite 跨站请求伪造漏洞
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 WP-Backgrounds Lite 2.3版本及之前版本存在跨站请求伪造漏洞，该漏洞源于ino_save_data() 函数的随机数验证缺失或不正确，使未经身份验证的攻击者可以通过伪造的请求保存元数据，欺骗站点管理员执行单
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
inoplugs WP-Backgrounds Lite * ~ 2.3 -

II. Public POCs for CVE-2021-4419

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III. Intelligence Information for CVE-2021-4419

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Patches & Fixes for CVE-2021-4419 (1)

Vendor Advisories for CVE-2021-4419 (1)

Security Blog Posts for CVE-2021-4419 (7)

IV. Related Vulnerabilities

Same weakness: CWE-352

V. Comments for CVE-2021-4419

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