CVE-2020-15664
MEDIUM severity · CVSS 6.5 · Incorrect authorization
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Affected products we track (2)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://bugzilla.mozilla.org/show_bug.cgi?id=1658214Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-36/Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-37/Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-38/Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-39/Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-40/Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-41/Advisory