An extension with access to the "chrome.debugger" API can send CDP commands
to regular tabs. Some of these commands, like Network.getAllCookies
, break
isolation as they affect the entire browser instance and not just the
debugged target.
An attacker who convinced a user to install a malicious extension can steal and modify any cookie stored in the browser.
- Install and enable the provided extension
The extension will automatically open a new tab listing all entries from the browser cookie store.
Not reported to Google as it was considered intended behavior.