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Threat Entry
Updated 2026-04-15
CVE-2026-1043 - Postmarkapp Email Integrator Plugin
The PostmarkApp Email Integrator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin settings in versions up to, and including, 2.4. This is due to insufficient input sanitization and output escaping on the pma_api_key and pma_sender_address parameters. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the settings page.
PLUGIN
Postmarkapp Email Integrator
CVE-2026-1043
Risk Score