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CVE-2021-24856— Shared Files < 1.6.61 - Admin+ Stored Cross-Site Scripting

Quick assessment

Affected
Unknown Shared Files – Easy Download Manager and File Sharing Plugin with Frontend File Upload
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 的Shared Files 插件1.6.61之前版本存在跨站脚本漏洞，该漏洞源于插件没有清理和逃脱下载反文本设置，攻击者可利用该漏洞执行跨站点脚本攻击。

AI Predicted 5.4 Difficulty: Easy EPSS 0.65% · P48

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-24856

Vulnerability Information
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Vulnerability Title
Shared Files < 1.6.61 - Admin+ Stored Cross-Site Scripting
Source: CVE Program / CVE List V5
Vulnerability Description
The Shared Files WordPress plugin before 1.6.61 does not sanitise and escape the Download Counter Text settings, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
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 的Shared Files 插件1.6.61之前版本存在跨站脚本漏洞，该漏洞源于插件没有清理和逃脱下载反文本设置，攻击者可利用该漏洞执行跨站点脚本攻击。
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 Shared Files – Easy Download Manager and File Sharing Plugin with Frontend File Upload 1.6.61 ~ 1.6.61 -

II. Public POCs for CVE-2021-24856

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III. Intelligence Information for CVE-2021-24856

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Vendor Advisories for CVE-2021-24856 (1)

Other References for CVE-2021-24856 (1)

Same Patch Batch · Unknown · 2021-11-17 · 19 CVEs total

CVE-2021-24815 Paypal Donation < 1.3.2 - Admin+ Stored Cross-Site Scripting
CVE-2021-24598 Testimonial Builder < 1.6.0 - Admin+ Stored Cross-Site Scripting
CVE-2021-24758 Email Log < 2.4.7 - Admin+ SQL Injection
CVE-2021-24772 Stream < 3.8.2 - Admin+ SQL Injection
CVE-2021-24776 WP Performance Score Booster < 2.1 - Settings Change via CSRF
CVE-2021-24787 Client Invoicing by Sprout Invoices < 19.9.7 - Admin+ Stored Cross-Site Scripting
CVE-2021-24796 My Tickets < 1.8.31 - Unauthenticated Stored Cross-Site Scripting
CVE-2021-24802 Colorful Categories < 2.0.15 - Arbitrary Colors Update via CSRF
CVE-2021-24804 Simple JWT Login < 3.2.1 - Arbitrary Settings Update to Site Takeover via CSRF
CVE-2021-24854 QR Redirector < 1.6.1 - Contributor+ Stored Cross-Site Scripting
CVE-2021-24833 YOP Poll < 6.3.1 - Author+ Stored Cross-Site Scripting via Preview Module
CVE-2021-24834 YOP Poll < 6.3.1 - Author+ Stored Cross-Site Scripting via Options Module
CVE-2021-24841 Helpful < 4.4.59 - Admin+ Stored Cross-Site Scripting
CVE-2021-24847 SEO Redirection < 8.2 - Subscriber+ SQL Injection
CVE-2021-24850 Insert Pages < 3.7.0 - Contributor+ Stored Cross-Site Scripting
CVE-2021-24851 Insert Pages < 3.7.0 - Contributor+ Arbitrary Posts/Pages Access
CVE-2021-24852 MouseWheel Smooth Scroll < 5.7 - Plugin's Setting Update via CSRF
CVE-2021-24853 QR Redirector < 1.6 - Subscriber+ Arbitrary QR Redirect Response Status Update

IV. Related Vulnerabilities

Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24856

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