CVE-2023-7027 Cross-site scripting in Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
Unauthenticated attackers can inject arbitrary web scripts via the device header, leading to stored XSS execution when users access affected pages.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-7027?
CVE-2023-7027 is a high-severity cross-site scripting vulnerability in saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App, published on 3 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘device’ header in all versions up to, and including, 2.8.7 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.
Weakness: CWE-79
Which versions are affected by CVE-2023-7027?
It affects 1 product.
Products include Wpexperts Post Smtp.
How do I fix CVE-2023-7027?
No fix has been published for CVE-2023-7027 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-7027 being exploited?
There is no known exploitation of CVE-2023-7027 in the wild and no public exploit code.
Other vulnerabilities in saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
- CVE-2023-6875 Auth bypass in Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
- CVE-2023-3179 POST SMTP Mailer < 2.5.7 - Account Takeover via CSRF
- CVE-2023-52233 WordPress POST SMTP Mailer plugin <= 2.8.6 - Broken Access Control on API vulnerability
- CVE-2024-52436 WordPress Post SMTP plugin <= 2.9.9 - SQL Injection vulnerability
- CVE-2025-0521 Post SMTP <= 3.0.2 - Unauthenticated Stored Cross-Site Scripting
Sources
Also known as GHSA-mh49-rqvq-cjxg.