Name of the Vulnerable Software and Affected Versions:
Firefox versions prior to 140
Description:
An attacker was able to bypass the `connect-src` directive of a Content Security Policy by manipulating subdocuments, which would have also hidden the connections from the Network tab in Devtools.
Recommendations:
For versions prior to 140, update to version 140 or later to resolve the issue. As a temporary workaround, consider restricting the use of subdocuments to minimize the risk of exploitation.