The PostmarkApp Email Integrator plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.4. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVE-2025-31617 is a medium severity with CVSS 4.3 Stored Cross-Site Scripting issue affecting the Plugin PostmarkApp Email Integrator. It affects Versions up to 2.4 and is fixed in 2.5.0.
CVE-2025-31617 is tracked for the Plugin PostmarkApp Email Integrator as medium severity with CVSS 4.3. The affected range is Versions up to 2.4. Update PostmarkApp Email Integrator to 2.5.0 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
postmarkapp-email-integrator
View on wordpress.org
|
| CVE | CVE-2025-31617 |
| Patched Versions |
2.5.0
|
| Affected Versions |
Versions up to 2.4
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
PostmarkApp Email Integrator <= 2.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Settings
PostmarkApp Email Integrator <= 2.4 - Missing Authorization
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