CVE-2018-5132

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.46% Top 25%
Vendor Advisory ubuntu.com Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/103386 vdb entry third party advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1408194 issue tracking permissions required third party advisory
http://www.securitytracker.com/id/1040514 vdb entry third party advisory
https://usn.ubuntu.com/3596-1/ third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2018-06/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5132?
CVE-2018-5132 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5132?
To fix CVE-2018-5132, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-5132 being actively exploited in the wild?
It is possible that CVE-2018-5132 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-5132?
CVE-2018-5132 affects Mozilla Firefox.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.