CVE-2022-2371 YaySMTP < 2.2.1 - Subscriber+ Stored Cross-Site Scripting

What is CVE-2022-2371?

CVE-2022-2371 is a medium-severity cross-site scripting vulnerability in Unknown YaySMTP – Simple WP SMTP Mail, published on 8 Aug 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The YaySMTP WordPress plugin before 2.2.1 does not have proper authorisation when saving its settings, allowing users with a role as low as subscriber to change them, and use that to conduct Stored Cross-Site Scripting attack due to the lack of escaping in them as well.

Weakness: CWE-79

Which versions are affected by CVE-2022-2371?

It affects 1 product.

Products include Yaycommerce Yaysmtp.

How do I fix CVE-2022-2371?

No fix has been published for CVE-2022-2371 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-2022-2371 being exploited?

There is no known exploitation of CVE-2022-2371 in the wild and no public exploit code.

Other vulnerabilities in Unknown YaySMTP – Simple WP SMTP Mail

• CVE-2025-0918 SMTP for SendGrid – YaySMTP <= 1.4 - Unauthenticated Stored Cross-Site Scripting via Email Logs High 7.2
• CVE-2025-0953 SMTP for Sendinblue – YaySMTP <= 1.2 - Unauthenticated Stored Cross-Site Scripting via Email Logs High 7.2
• CVE-2025-0916 YaySMTP 2.4.9 - 2.6.2 - Unauthenticated Stored Cross-Site Scripting High 7.2
• CVE-2023-3093 YaySMTP <= 2.4.5 - Unauthenticated Stored Cross-Site Scripting via Email High 7.2
• CVE-2022-2370 YaySMTP < 2.2.1 - Subscriber+ SMTP Credentials Leak Medium 6.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8qx8-7fxh-rjvj.