Security Vulnerability Report
中文
CVE-2026-4722 CVSS 8.8 HIGH

CVE-2026-4722

Published: 2026-03-24 13:16:08
Last Modified: 2026-04-13 15:17:44

Description

Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

CVSS Details

CVSS Score
8.8
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* - VULNERABLE
Firefox < 149
Thunderbird < 149

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// Proof of Concept for CVE-2026-4722 // This code demonstrates the concept of triggering the IPC vulnerability. // Actual exploitation requires specific payload crafting and is not included here. function triggerVulnerability() { try { // Simulate the malicious IPC message structure var maliciousPayload = { command: "escalate_privileges", target: "core_process", data: "arbitrary_code_execution_stub" }; // Send the payload via the vulnerable IPC interface // Note: This is a conceptual representation if (window.ipcBridge) { window.ipcBridge.postMessage(maliciousPayload, "*"); console.log("[PoC] IPC payload sent for CVE-2026-4722"); } else { console.log("[PoC] IPC Bridge not found in this environment."); } } catch (e) { console.log("[PoC] Error: " + e.message); } } // Triggering the function requires User Interaction (UI:R) document.body.addEventListener('click', triggerVulnerability);

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-4722", "sourceIdentifier": "[email protected]", "published": "2026-03-24T13:16:08.093", "lastModified": "2026-04-13T15:17:44.393", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149."}, {"lang": "es", "value": "Escalada de privilegios en el componente IPC. Esta vulnerabilidad afecta a Firefox &lt; 149 y Thunderbird &lt; 149."}], "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:*:*:*:*:-:*:*:*", "versionEndExcluding": "149.0", "matchCriteriaId": "02F2B82F-E997-4D5F-BBB0-237E4962555B"}]}]}], "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2010097", "source": "[email protected]", "tags": ["Permissions Required"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/", "source": "[email protected]"}]}}