CVE-2021-24808— BP Better Messages < 1.9.9.41 - Reflected Cross-Site Scripting
Quick assessment
Affected
Unknown BP Better Messages
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 插件 BP Better Messages 1.9.9.41之前版本存在跨站脚本漏洞，该漏洞源于插件将subject参数输出回属性之前缺少有效的过滤与转义，从而导致反射跨站点脚本问题。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-24808
Vulnerability Information
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Vulnerability Title
BP Better Messages < 1.9.9.41 - Reflected Cross-Site Scripting
Source: CVE Program / CVE List V5
Vulnerability Description
The BP Better Messages WordPress plugin before 1.9.9.41 sanitise (with sanitize_text_field) but does not escape the 'subject' parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue
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 插件 BP Better Messages 1.9.9.41之前版本存在跨站脚本漏洞，该漏洞源于插件将subject参数输出回属性之前缺少有效的过滤与转义，从而导致反射跨站点脚本问题。
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 | BP Better Messages | 1.9.9.41 ~ 1.9.9.41 | - |
|
II. Public POCs for CVE-2021-24808
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2021-24808 (1)
Vendor Advisories for CVE-2021-24808 (1)
Same Patch Batch · Unknown · 2021-11-01 · 30 CVEs total
| CVE-2021-24716 | Modern Events Calendar Lite < 5.22.3 - Authenticated Stored Cross Site Scripting | |
| CVE-2021-24813 | Events Made Easy < 2.2.24 - Admin+ Stored Cross-Site Scripting | |
| CVE-2021-24809 | BP Better Messages < 1.9.9.41 - Multiple CSRF | |
| CVE-2021-24799 | Far Future Expiry Header < 1.5 - Plugin's Settings Update via CSRF | |
| CVE-2021-24794 | Connections Business Directory < 10.4.3 - Admin+ Stored Cross-Site Scripting | |
| CVE-2021-24793 | WPeMatico RSS Feed Fetcher < 2.6.12 - Admin+ Stored Cross-Site Scripting | |
| CVE-2021-24789 | Flat Preloader < 1.5.5 - Admin+ Stored Cross-Site Scripting | |
| CVE-2021-24781 | Image Source Control < 2.3.1 - Contributor+ Arbitrary Post Meta Value Change | |
| CVE-2021-24773 | WordPress Download Manager < 3.2.16 - Admin+ Stored Cross-Site Scripting | |
| CVE-2021-24770 | Stylish Price List < 6.9.1 - Subscriber+ Arbitrary Image Upload | |
| CVE-2021-24757 | Stylish Price List < 6.9.0 - Unauthenticated Arbitrary Image Upload | |
| CVE-2021-24742 | Logo Slider and Showcase < 1.3.37 - Editor Plugin's Settings Update | |
| CVE-2021-24723 | WP Reactions Lite < 1.3.6 - Authenticated Stored Cross Site Scripting | |
| CVE-2021-24722 | Restaurant Menu by MotoPress < 2.4.2 - Admin+ Stored Cross Site Scripting | |
| CVE-2021-24717 | AutomatorWP < 1.7.6 - Missing Authorization and Privilege Escalation | |
| CVE-2015-10001 | WP-Stats < 2.5.2 - CSRF to Stored Cross-Site Scripting (XSS) | |
| CVE-2021-24715 | WP Sitemap Page < 1.7.0 - Admin+ Stored Cross Site Scripting | |
| CVE-2021-24685 | Flat Preloader < 1.5.4 - CSRF to Stored Cross-Site Scripting | |
| CVE-2021-24682 | Cool Tag Cloud < 2.26 - Contributor+ Stored Cross-Site Scripting | |
| CVE-2021-24624 | MP3 Audio Player for Music, Radio & Podcast by Sonaar < 2.4.2 - Multiple Admin+ Cross Site |
Showing top 20 of 30 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: BP Better Messages
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CVE-2026-84812
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WordPress Better Messages plugin <= 2.4.32 - Broken Authenti -
CVE-2021-24809
BP Better Messages < 1.9.9.41 - Multiple CSRF
Same vendor: Unknown
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Broken Link Notifier 1.3.1 - 2.0.0 - Unauthenticated SSRF vi -
CVE-2026-92424
Content Egg < 11.9.0 - Contributor+ Stored XSS via Import Qu
Same weakness: CWE-79
V. Comments for CVE-2021-24808
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