CVE-2021-23986 - log back

CVE-2021-23986 edited at 23 Mar 2021 14:01:25
Severity
- Unknown
+ Low
Remote
- Unknown
+ Remote
Type
- Unknown
+ Information disclosure
Description
+ A security issue was found in Firefox before version 87. A malicious extension with the 'search' permission could have installed a new search engine whose favicon referenced a cross-origin URL. The response to this cross-origin request could have been read by the extension, allowing a same-origin policy bypass by the extension, which should not have cross-origin permissions. This cross-origin request was made without cookies, so the sensitive information disclosed by the violation was limited to local-network resources or resources that perform IP-based authentication.
References
+ https://www.mozilla.org/en-US/security/advisories/mfsa2021-10/#CVE-2021-23986
+ https://bugzilla.mozilla.org/show_bug.cgi?id=1692623
Notes
CVE-2021-23986 created at 23 Mar 2021 13:53:51