CVE-2021-24528— FluentSMTP < 2.0.1 - Authenticated Stored XSS
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I. Basic Information for CVE-2021-24528
Vulnerability Information
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Vulnerability Title
FluentSMTP < 2.0.1 - Authenticated Stored XSS
Source: NVD (National Vulnerability Database)
Vulnerability Description
The FluentSMTP WordPress plugin before 2.0.1 does not sanitize parameters before storing the settings in the database, nor does the plugin escape the values before outputting them when viewing the SMTP settings set by this plugin, leading to a stored cross site scripting (XSS) vulnerability. Only users with roles capable of managing plugins can modify the plugin's settings.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
WordPress 插件跨站脚本漏洞
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 2.0.1之前版本存在跨站脚本漏洞，该漏洞源于插件没有在数据库中存储设置之前对参数进行验证，也没有在查看SMTP设置时的输出值进行转义，导致存储跨站脚本漏洞。只有具有管理插件功能的用户才能修改插件的设置。
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 | FluentSMTP – WordPress Mail SMTP, SES, SendGrid, Mailgun and Any SMTP Plugin | 2.0.1 ~ 2.0.1 | - |
II. Public POCs for CVE-2021-24528
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Unknown · 2021-08-30 · 10 CVEs total
| CVE-2021-24437 | Favicon by RealFaviconGenerator <= 1.3.20 - Reflected Cross-Site Scripting (XSS) | |
| CVE-2021-24438 | ShareThis Dashboard for Google Analytics < 2.5.2 - Reflected Cross-Site Scripting (XSS) | |
| CVE-2021-24579 | Bold Page Builder < 3.1.6 - PHP Object Injection | |
| CVE-2021-24580 | Side Menu Lite < 2.2.6 - Authenticated SQL Injection | |
| CVE-2021-24581 | Blue Admin <= 21.06.01 - CSRF to Stored Cross-Site Scripting (XSS) | |
| CVE-2021-24592 | Sitewide Notice WP < 2.3 - Authenticated Stored XSS | |
| CVE-2021-24593 | Business Hours Indicator < 2.3.5 - Authenticated Stored XSS | |
| CVE-2021-24665 | WP Video Lightbox < 1.9.3 - Contributor+ Stored Cross-Site Scripting | |
| CVE-2021-24667 | Gallery Blocks with Lightbox < 2.2.1- Authenticated Stored Cross-Site Scripting |
IV. Related Vulnerabilities
Same vendor: Unknown
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Magic Export & Import < 1.2.0 - Unauthenticated PII Disclosu - CVE-2026-5337
Frontend File Manager Plugin <= 23.6 - Subscriber+ Arbitrary - CVE-2026-5306
Check & Log Email < 2.0.13 - Unauthenticated Stored XSS
Same weakness: CWE-79
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V. Comments for CVE-2021-24528
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