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CVE-2023-3082— Post SMTP <= 2.5.7 - Unauthenticated Stored Cross-Site Scripting via Email

Quick assessment

Affected
saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用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是一个应用插件。 WordPress Plugin Post SMTP 存在跨站脚本漏洞，该漏洞源于输入清理和输出转义不足。

CVSS 7.2 · High EPSS 0.50% · P40

Possible ATT&CK Techniques 1 AI

T1059.001 · PowerShell
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I. Basic Information for CVE-2023-3082

Vulnerability Information
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Vulnerability Title
Post SMTP <= 2.5.7 - Unauthenticated Stored Cross-Site Scripting via Email
Source: CVE Program / CVE List V5
Vulnerability Description
The Post SMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via email contents in versions up to, and including, 2.5.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
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 Plugin Post SMTP 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用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是一个应用插件。 WordPress Plugin Post SMTP 存在跨站脚本漏洞，该漏洞源于输入清理和输出转义不足。
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
wpexpertsio POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress * ~ 2.5.7 -

II. Public POCs for CVE-2023-3082

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III. Intelligence Information for CVE-2023-3082

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Vendor Advisories for CVE-2023-3082 (1)

Same Patch Batch · saadiqbal · 2023-07-12 · 3 CVEs total

CVE-2021-4411 4.3 MEDIUM WP EasyPay – Square for WordPress <= 3.2.0 - Cross-Site Request Forgery Bypass
CVE-2021-4422 4.3 MEDIUM POST SMTP Mailer <= 2.0.20 - Cross-Site Request Forgery Bypass

IV. Related Vulnerabilities

Same product: Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
Same vendor: saadiqbal
Same weakness: CWE-79

V. Comments for CVE-2023-3082

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