CVE-2018-18499 Information disclosure in Firefox

What is CVE-2018-18499?

CVE-2018-18499 is a medium-severity vulnerability in Mozilla Firefox, published on 28 Feb 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-346

Which versions are affected by CVE-2018-18499?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.

How do I fix CVE-2018-18499?

Upgrade to a fixed version.

Is CVE-2018-18499 being exploited?

There is no known exploitation of CVE-2018-18499 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2018-18499, GHSA-h7hh-7f6j-x9mh, UBUNTU-CVE-2018-18499.