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The existence of a specifically requested local file can be found due to the double firing of the "onerror" when the "source" attribute on a "<track>" tag refers to a file that does not exist if the source page is loaded locally. This vulnerability affects Firefox < 51.
Base Score
3.3
| Base Score | 3.3 |
|---|---|
| Vector String | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| Base Severity | Low |
| Version | 3.0 |
| Attack Vector (AV) | LOCAL |
