CVE-2018-5141

Severity: high (CVSS 8.2 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-06-11 · updated 2026-06-17
Weakness: CWE-20

Description

A vulnerability in the notifications Push API where notifications can be sent through service workers by web content without direct user interaction. This could be used to open new tabs in a denial of service (DOS) attack or to display unwanted content from arbitrary URLs to users. This vulnerability affects Firefox < 59.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 17.10
Mozilla Firefox: before 59.0 — fixed in 59.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 59.0. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/103386
http://www.securitytracker.com/id/1040514
https://bugzilla.mozilla.org/show_bug.cgi?id=1429093
https://usn.ubuntu.com/3596-1/
https://www.mozilla.org/security/advisories/mfsa2018-06/
http://www.securityfocus.com/bid/103386
http://www.securitytracker.com/id/1040514
https://bugzilla.mozilla.org/show_bug.cgi?id=1429093
https://usn.ubuntu.com/3596-1/
https://www.mozilla.org/security/advisories/mfsa2018-06/

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