Not rated
CVE-2020-15666 When trying to load a non-video in an audio/video context the exact status code (200, 302, 404, 500, 412, 403, etc.) was…
Description
When trying to load a non-video in an audio/video context the exact status code (200, 302, 404, 500, 412, 403, etc.) was disclosed via the MediaError Message. This level of information leakage is inconsistent with the standardized onerror/onsuccess disclosure and can lead to inferring login status to services or device discovery on a local network among other attacks. This vulnerability affects Firefox < 80 and Firefox for Android < 80.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 80 | earliest → < 80 | 80 |
| Firefox for Android 80 | earliest → < 80 | 80 |
References
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- bugzilla.mozilla.org bugzilla.mozilla.org
Timeline
- Published
- Last modified
Other CVEs of Firefox
The 2221 CVEs of Firefox →
CVE-2026-120572
Incorrect boundary conditions in the Layout: Block and Inline component
8.8
High
CVE-2026-118027
Frame poisoning in the Layout component
9.1
Critical
CVE-2026-118026
Invalid pointer in the JavaScript: GC component
8.8
High
CVE-2026-118024
Use-after-free in the Graphics: Text component
8.8
High