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CVE-2018-5112

7.5 · HIGH

Development Tools panels of an extension are required to load URLs for the panels as relative URLs from the extension manifest file but this requirement was not enforced in all instances.

Published Jun 11, 2018CWE-552EPSS 1.99%

Overview

CVE-2018-5112 is a high-severity vulnerability. It was published on June 11, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Development Tools panels of an extension are required to load URLs for the panels as relative URLs from the extension manifest file but this requirement was not enforced in all instances. This could allow the development tools panel for the extension to load a URL that it should not be able to access, including potentially privileged pages. This vulnerability affects Firefox < 58.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/102786Refwww.securitytracker.com/id/1040270Refbugzilla.mozilla.org/show_bug.cgi?id=1425224Refusn.ubuntu.com/3544-1/Refwww.mozilla.org/security/advisories/mfsa2018-02/Refwww.securityfocus.com/bid/102786Refwww.securitytracker.com/id/1040270Refbugzilla.mozilla.org/show_bug.cgi?id=1425224Refusn.ubuntu.com/3544-1/Refwww.mozilla.org/security/advisories/mfsa2018-02/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-5112?

CVE-2018-5112 is a high-severity vulnerability. It was published on June 11, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2018-5112?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-5112?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-5112?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-5112 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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