CVE-2017-5393

Name: CVE-2017-5393
Creator: NVD / NIST
Published: 2018-06-11T21:29:03.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.90%

Last modified Jun 17, 2026

CVE-2017-5393 is a vulnerability of currently unknown severity. The "mozAddonManager" allows for the installation of extensions from the CDN for addons.mozilla.org, a publicly accessible site. This could allow malicious extensions to install additional extensions from the CDN in combination with an XSS attack on Mozilla AMO sites. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

The "mozAddonManager" allows for the installation of extensions from the CDN for addons.mozilla.org, a publicly accessible site. This could allow malicious extensions to install additional extensions from the CDN in combination with an XSS attack on Mozilla AMO sites. This vulnerability affects Firefox < 51.

Metrics

EPSS Probability

0.90%

54.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 51.0

References

http://www.securityfocus.com/bid/95763Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037693Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1309282Permissions Required
https://www.mozilla.org/security/advisories/mfsa2017-01/Vendor Advisory
http://www.securityfocus.com/bid/95763Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037693Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1309282Permissions Required
https://www.mozilla.org/security/advisories/mfsa2017-01/Vendor Advisory

Timeline

Published: Jun 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-5393?

How severe is CVE-2017-5393?

Severity scoring for CVE-2017-5393 is pending analysis. The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2017-5393?

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-2017-5393?

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

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Source: NVD / NIST