CVE-2018-5132

MEDIUM 6.5CVE-2018-5132 · Published 11/06/2018 · updated 17/06/2026

In short

CVE-2018-5132 is a MEDIUM (CVSS 6.5) vulnerability affecting firefox (mozilla).
Chance of exploitation in the next 30 days (EPSS): 1.4%, higher than 73.3% of all vulnerabilities.
Fix: update to 59.0 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 59.0`	`59.0`

Description

The Find API for WebExtensions can search some privileged pages, such as "about:debugging", if these pages are open in a tab. This could allow a malicious WebExtension to search for otherwise protected data if a user has it open. This vulnerability affects Firefox < 59.

References

securityfocus.com/bid/103386 · Third Party Advisory
securitytracker.com/id/1040514 · Third Party Advisory
bugzilla.mozilla.org/show_bug.cgi · Issue Tracking
usn.ubuntu.com/3596-1 · Third Party Advisory
mozilla.org/security/advisories/mfsa2018-06 · Vendor Advisory

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Package

Affected versions

Patched versions

firefox

mozilla

< 59.0

59.0

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