medium4.3
CVE-2020-35111
When an extension with the proxy permission registered to receive <all_urls>, the proxy.onRequest callback was not triggered for view-source URLs.
Impact
When an extension with the proxy permission registered to receive <all_urls>, the proxy.onRequest callback was not triggered for view-source URLs. While web content cannot navigate to such URLs, a user opening View Source could have inadvertently leaked their IP address. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox | before 84.0 |
| Mozilla | Firefox Esr | before 78.6.0 |
| Mozilla | Thunderbird | before 78.6.0 |
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/show_bug.cgi?id=1657916
- https://www.mozilla.org/security/advisories/mfsa2020-54/
- https://www.mozilla.org/security/advisories/mfsa2020-55/
- https://www.mozilla.org/security/advisories/mfsa2020-56/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1657916
- https://www.mozilla.org/security/advisories/mfsa2020-54/
- https://www.mozilla.org/security/advisories/mfsa2020-55/
- https://www.mozilla.org/security/advisories/mfsa2020-56/