CVE-2021-23986 log

Severity Low
Remote Yes
Type Information disclosure
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.
Group Package Affected Fixed Severity Status Ticket
AVG-1728 firefox 86.0.1-1 87.0-1 High Fixed