It was possible for a web extension with minimal permissions to create a `StreamFilter` which could be used to read and modify the response body of requests on any site. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
During installation, installed file permissions are set to allow anyone to modify those files.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Link | Tags |
---|---|
https://bugzilla.mozilla.org/show_bug.cgi?id=1909298 | issue tracking permissions required |
https://www.mozilla.org/security/advisories/mfsa2024-33/ | vendor advisory |
https://www.mozilla.org/security/advisories/mfsa2024-34/ | vendor advisory |
https://www.mozilla.org/security/advisories/mfsa2024-35/ | vendor advisory |
https://www.mozilla.org/security/advisories/mfsa2024-37/ | vendor advisory |
https://www.mozilla.org/security/advisories/mfsa2024-38/ | vendor advisory |