Security Vulnerabilities fixed in Thunderbird 102.11 — Mozilla

In multiple cases browser prompts could have been obscured by popups controlled by content. These could have led to potential user confusion and spoofing attacks.
An out-of-bound read could have led to a crash in the RLBox Expat driver.
A missing delay in popup notifications could have made it possible for an attacker to trick a user into granting permissions.
A type checking bug would have led to invalid code being compiled.
An attacker could have positioned a datalist element to obscure the address bar.
When reading a file, an uninitialized value could have been used as read limit.
Protocol handlers ms-cxh and ms-cxh-full could have been leveraged to trigger a denial of service.Note: This attack only affects Windows. Other operating systems are not affected.
Mozilla developers and community members Gabriele Svelto, Andrew Osmond, Emily McDonough, Sebastian Hengst, Andrew McCreight and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 102.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.