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CVE-2021-24440— Sign-up Sheets < 1.0.14 - Authenticated Stored Cross-Site Scripting (XSS)

Quick assessment

Affected
Unknown Sign-up Sheets
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 plugin Sign-up Sheets存在跨站脚本漏洞，该漏洞源于Sign-up Sheets在创建新表时没有清理或转存一些字段，允许高权限用户在其中添加JavaScript，导致存储跨站点脚本问题。

AI Predicted 4.3 Difficulty: Easy EPSS 0.62% · P47
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I. Basic Information for CVE-2021-24440

Vulnerability Information
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Vulnerability Title
Sign-up Sheets < 1.0.14 - Authenticated Stored Cross-Site Scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
The Sign-up Sheets WordPress plugin before 1.0.14 did not sanitise or escape some of its fields when creating a new sheet, allowing high privilege users to add JavaScript in them, leading to a Stored Cross-Site Scripting issue. The payloads will be triggered when viewing the 'All Sheets' page in the admin dashboard
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 plugin Sign-up Sheets存在跨站脚本漏洞，该漏洞源于Sign-up Sheets在创建新表时没有清理或转存一些字段，允许高权限用户在其中添加JavaScript，导致存储跨站点脚本问题。
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 Sign-up Sheets 1.0.14 ~ 1.0.14 -

II. Public POCs for CVE-2021-24440

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III. Intelligence Information for CVE-2021-24440

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Vendor Advisories for CVE-2021-24440 (1)

Same Patch Batch · Unknown · 2021-07-12 · 10 CVEs total

CVE-2021-24454 YOP Poll < 6.2.8 - Stored Cross-Site Scripting
CVE-2021-24441 Sign-up Sheets < 1.0.14 - Authenticated CSV Injection
CVE-2021-24439 Browser Screenshots < 1.7.6 - Contributor+ Stored XSS
CVE-2021-24434 Glass <= 1.3.2 - CSRF to Stored Cross-Site Scripting (XSS)
CVE-2021-24426 Backup by 10Web <= 1.0.20 - Reflected Cross-Site Scripting (XSS)
CVE-2021-24424 WP Reset < 1.90 - Authenticated Stored XSS
CVE-2021-24421 WP JobSearch < 1.7.4 - Authenticated Stored XSS
CVE-2021-24420 Request a Quote < 2.3.4 - Authenticated Stored XSS
CVE-2021-24419 WP YouTube Lyte < 1.7.16 - Authenticated Stored XSS

IV. Related Vulnerabilities

Same product: Sign-up Sheets
Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24440

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