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CVE-2023-3093 YaySMTP <= 2.4.5 - Unauthenticated Stored Cross-Site Scripting via Email

High 7.2 Published Updated

Unauthenticated attackers can inject arbitrary web scripts via email contents in the YaySMTP WordPress plugin, potentially leading to code execution or account takeover.

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-2023-3093?

CVE-2023-3093 is a high-severity cross-site scripting vulnerability in yaycommerce YaySMTP and Email Logs: Amazon SES, SendGrid, Outlook, Mailgun, Brevo, Google and Any SMTP Service, published on 12 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The YaySMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via email contents in versions up to, and including, 2.4.5 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-2023-3093?

It affects 1 product.

Products include Yaycommerce Yaysmtp.

How do I fix CVE-2023-3093?

No fix has been published for CVE-2023-3093 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-2023-3093 being exploited?

There is no known exploitation of CVE-2023-3093 in the wild and no public exploit code.

Sources

Also known as GHSA-4vh8-mwxv-vg98.

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