Vulnerability Description
By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, Firefox ESR < 78.2, and Firefox for Android < 80.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 80.0 |
| Mozilla | Firefox Esr | < 68.12 |
| Mozilla | Thunderbird | < 68.12 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1658214Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-37/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-38/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-39/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-40/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-41/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1658214Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-37/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-38/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-39/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-40/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-41/Vendor Advisory
FAQ
What is CVE-2020-15664?
CVE-2020-15664 is a vulnerability with a CVSS score of 6.5 (MEDIUM). By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install...
How severe is CVE-2020-15664?
CVE-2020-15664 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15664?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.