CVE-2018-18499

MEDIUM

Mozilla Firefox < 62.0 - Origin Validation Error

Title source: rule

Description

A same-origin policy violation allowing the theft of cross-origin URL entries when using a meta http-equiv="refresh" on a page to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

References (4)

[Issue Tracking, Permissions Required, Vendor Advisory] https://bugzilla.mozilla.org/show_bug.cgi?id=1468523

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2018-20/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2018-21/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2018-25/

Scores

CVSS v3 6.5

EPSS 0.0020

EPSS Percentile 41.6%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Classification

CWE

CWE-346

Status published

Affected Products (3)

mozilla/firefox < 62.0

mozilla/firefox_esr < 60.2

mozilla/thunderbird < 60.2.1

Timeline

Published Feb 28, 2019

Tracked Since Feb 18, 2026