CVE-2020-15680

Summary

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.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefoxunspecified < 82affected

Weaknesses

  • Presence of external protocol handlers could be determined through image tags

ADP Enrichment

CVE Program Container

Additional References

References