BaseFortify

Publication date: 2025-11-11

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-11-11

Last Modified

2026-04-13

Generated

2026-07-06

AI Q&A

2025-11-11

EPSS Evaluated

2026-07-05

NVD

CVE-2025-13018

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 140.5.0 (exc)
mozilla	firefox	to 145.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-288	The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Attack-Flow Graph

Executive Summary

This vulnerability is a mitigation bypass in the DOM (Document Object Model) security component affecting Firefox versions below 145 and Firefox ESR versions below 140.5. It means that a security measure intended to protect the DOM can be circumvented, potentially allowing unauthorized actions within the browser's DOM environment.

Impact Analysis

The impact of this vulnerability could include unauthorized manipulation or access to the DOM within affected Firefox browsers, potentially leading to security risks such as data exposure, unauthorized actions, or exploitation by attackers.

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 145 or later, or Firefox ESR to version 140.5 or later.

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