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CVE-2021-24241— Advanced Custom Field Pro < 5.9.1 - Reflected Cross-Site Scripting (XSS)

Quick assessment

Affected
Unknown Advanced Custom Fields Pro
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 Advanced Custom Fields Pro 5.9.1 之前版本存在跨站脚本漏洞，该漏洞源于没有正确地转义生成的更新URL，导致在更新设置页面反映跨站点脚本问题。

AI Predicted 6.1 Difficulty: Moderate EPSS 1.39% · P71

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-24241

Vulnerability Information
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Vulnerability Title
Advanced Custom Field Pro < 5.9.1 - Reflected Cross-Site Scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.
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 Advanced Custom Fields Pro 5.9.1 之前版本存在跨站脚本漏洞，该漏洞源于没有正确地转义生成的更新URL，导致在更新设置页面反映跨站点脚本问题。
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 Advanced Custom Fields Pro 5.9.1 ~ 5.9.1 -

II. Public POCs for CVE-2021-24241

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III. Intelligence Information for CVE-2021-24241

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Vendor Advisories for CVE-2021-24241 (1)

Security Blog Posts for CVE-2021-24241 (1)

Other References for CVE-2021-24241 (1)

Same Patch Batch · Unknown · 2021-04-22 · 7 CVEs total

CVE-2021-24239 Pie Register < 3.7.0.1 - Reflected Cross-Site Scripting (XSS)
CVE-2021-24240 Business Hours Pro <= 5.5.0 - Unauthenticated Arbitrary File Upload to RCE
CVE-2021-24232 Advanced Booking Calendar < 1.6.8 - Authenticated Reflected Cross-Site Scripting (XSS)
CVE-2021-24233 Cooked Pro < 1.7.5.6 - Unauthenticated Reflected Cross Site Scripting (XSS)
CVE-2021-24234 Ivory Search < 4.6.1 - Reflected Cross Site Scripting (XSS)
CVE-2021-24235 Goto - Tour & Travel < 2.0 - Unauthenticated Reflected XSS

IV. Related Vulnerabilities

Same product: Advanced Custom Fields Pro
Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24241

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