What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
NMR Strava activities versions 1.0.14 and earlier contain a cross-site scripting vulnerability. An attacker with low-level user access can inject malicious scripts that execute in other users' browsers, potentially stealing session data or performing actions on their behalf. The vulnerability affects the entire application scope due to how the flaw propagates.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers and steal their session data or perform actions as them.
Potential impact on your site
04Site Impact
Users' accounts and data are at risk if an attacker with basic access injects malicious code affecting other site visitors.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site; no user interaction required from victims.
Key dates
06Disclosure timeline
May 8, 2026
CVE published
May 8, 2026
Record updated
