CVE-2026-5341
Stored XSS in NMR Strava Activities WordPress Plugin
Publication date: 2026-05-08
Last updated on: 2026-05-08
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| nmr | strava_activities_plugin | to 1.0.14 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The NMR Strava activities plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in its `strava_nmr_connect` shortcode. This vulnerability exists in all versions up to and including 1.0.14 because the plugin does not properly sanitize or escape user-supplied attributes. As a result, authenticated users with contributor-level access or higher can inject malicious scripts into pages, which will execute whenever any user views those pages.
How can this vulnerability impact me? :
This vulnerability allows attackers with contributor-level access or above to inject arbitrary scripts into WordPress pages. These scripts can execute in the browsers of users who visit the infected pages, potentially leading to theft of user credentials, session hijacking, defacement, or other malicious actions. Because the attack requires authenticated access, it primarily impacts sites where multiple users have contributor or higher roles.