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CVE-2021-24812— BetterLinks < 1.2.6 - Admin+ Stored Cross-Site Scripting

Quick assessment

Affected
Unknown BetterLinks – Shorten, Track and Manage any URL
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 BetterLinks存在跨站脚本漏洞，该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。

AI Predicted 8.1 Difficulty: Easy EPSS 0.60% · P46

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2021-24812

Vulnerability Information
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Vulnerability Title
BetterLinks < 1.2.6 - Admin+ Stored Cross-Site Scripting
Source: CVE Program / CVE List V5
Vulnerability Description
The BetterLinks WordPress plugin before 1.2.6 does not sanitise and escape some of imported link fields, which could lead to Stored Cross-Site Scripting issues when an admin import a malicious CSV.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress 跨站脚本漏洞
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 BetterLinks存在跨站脚本漏洞，该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。
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
Unknown BetterLinks – Shorten, Track and Manage any URL 1.2.6 ~ 1.2.6 -

II. Public POCs for CVE-2021-24812

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III. Intelligence Information for CVE-2021-24812

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Vendor Advisories for CVE-2021-24812 (1)

Same Patch Batch · Unknown · 2021-11-23 · 15 CVEs total

CVE-2021-24641 Images to WebP < 1.9 - Multiple Cross Site Request Forgery (CSRF)
CVE-2021-24644 Images to WebP < 1.9 - Authenticated Local File Inclusion
CVE-2021-24668 MAZ Loader < 1.4.1 - Arbitrary Loader Deletion via CSRF
CVE-2021-24700 Forminator < 1.15.4 - Admin+ Stored Cross-Site Scripting
CVE-2021-24703 Download Plugin < 1.6.1 - Subscriber+ Arbitrary Plugin Activation
CVE-2021-24729 Logo Showcase with Slick Slider < 1.2.4 - Author+ Stored Cross Site Scripting
CVE-2021-24830 Advanced Access Manager < 6.8.0 - Admin+ Stored Cross-Site Scripting
CVE-2021-24873 Tutor LMS < 1.9.11 - Reflected Cross-Site Scripting
CVE-2021-24875 eCommerce Product Catalog for WordPress < 3.0.39 - Reflected Cross-Site Scripting
CVE-2021-24877 MainWP Child < 4.1.8 - Admin+ SQL Injection
CVE-2021-24882 Slideshow Gallery < 1.7.4 - Admin+ Stored Cross-Site Scripting
CVE-2021-24888 ImageBoss < 3.0.6 - Admin+ Stored Cross-Site Scripting
CVE-2021-24891 Elementor < 3.4.8 - DOM Cross-Site-Scripting
CVE-2021-24894 Reviews Plus < 1.2.14 - Subscriber+ Reviews DoS

IV. Related Vulnerabilities

Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24812

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