CVE-2026-5341: Mirceatm Nmr Strava Activities

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The NMR Strava activities plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `strava_nmr_connect` shortcode in all versions up to, and including, 1.0.14 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Mirceatm Nmr Strava Activities: up to and including 1.0.14

Published 2026-05-08. Last modified 2026-06-17.