CVE-2017-5389

WebExtensions could use the "mozAddonManager" API by modifying the CSP headers on sites with the appropriate permissions and then using host requests to redirect script loads to a malicious site. This allows a malicious extension to then install additional extensions without explicit user permission. This vulnerability affects Firefox < 51.

• CWE-601

• 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=1308688Exploit, Issue Tracking, Patch, Vendor Advisory
• 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=1308688Exploit, Issue Tracking, Patch, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-01/Vendor Advisory

Published

Jun 11, 2018

Last Modified

Jun 17, 2026

Status

Modified

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