CVE-2018-18499

Name: CVE-2018-18499
Creator: NVD / NIST
Published: 2019-02-28T18:29:01.947+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.05%

Last modified Jun 17, 2026

CVE-2018-18499 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.05%

59.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-346

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 62.0
Mozilla	Firefox Esr	< 60.2
Mozilla	Thunderbird	< 60.2.1

References

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

Timeline

Published: Feb 28, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-18499?

How severe is CVE-2018-18499?

Severity scoring for CVE-2018-18499 is pending analysis. The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2018-18499?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-18499?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST