Vulnerability Description
If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 82.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1658881Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-45/Release NotesVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1658881Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-45/Release NotesVendor Advisory
FAQ
What is CVE-2020-15680?
CVE-2020-15680 is a vulnerability with a CVSS score of 5.3 (MEDIUM). If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an...
How severe is CVE-2020-15680?
CVE-2020-15680 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15680?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.