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CVE-2021-24528— FluentSMTP < 2.0.1 - Authenticated Stored XSS

Quick assessment

Affected
Unknown FluentSMTP – WordPress Mail SMTP, SES, SendGrid, Mailgun and Any SMTP Plugin
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 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。

AI Predicted 5.4 Difficulty: Easy EPSS 0.62% · P47
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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: CVE Program / CVE List V5
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: 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 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

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III. Intelligence Information for CVE-2021-24528

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Vendor Advisories for CVE-2021-24528 (1)

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
Same weakness: CWE-79

V. Comments for CVE-2021-24528

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