CVE-2023-3082— Post SMTP <= 2.5.7 - Unauthenticated Stored Cross-Site Scripting via Email
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
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 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
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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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
- CVE-2026-3090
Post SMTP <= 3.8.0 - Unauthenticated Stored Cross-Site Scrip - CVE-2026-2559
Post SMTP <= 3.8.0 - Missing Authorization to Authenticated - CVE-2025-12887
Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup - CVE-2025-11833
Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup - CVE-2025-9219
Post SMTP <= 3.4.1 - Missing Authorization to Authenticated
Same vendor: saadiqbal
- CVE-2026-3090
Post SMTP <= 3.8.0 - Unauthenticated Stored Cross-Site Scrip - CVE-2026-2559
Post SMTP <= 3.8.0 - Missing Authorization to Authenticated - CVE-2026-1674
Gutena Forms – Contact Form, Survey Form, Feedback Form, Boo - CVE-2026-0550
myCred <= 2.9.7.3 - Authenticated (Contributor+) Stored Cros - CVE-2026-0832
New User Approve <= 3.2.2 - Missing Authorization to Unauthe
Same weakness: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2023-3082
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