CVE-2026-1043 — PostmarkApp Email Integrator <= 2.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Settings
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 …
Published: 2026-02-19 · CVSS: 4.4 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7