CVE-2022-22756

Si se convenciera a un usuario de arrastrar y soltar una imagen en su escritorio u otra carpeta, el objeto resultante podría haberse convertido en un script ejecutable que habría ejecutado código arbitrario después de que el usuario hiciera clic en él. Esta vulnerabilidad afecta a Firefox < 97, Thunderbird < 91.6 y Firefox ESR < 91.6.

The Mozilla Foundation Security Advisory describes this flaw as: If a user was convinced to drag and drop an image to their desktop or other folder, the resulting object could have been changed into an executable script, which would have run arbitrary code after the user clicked it.

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass security restrictions, obtain sensitive information, cause undefined behaviour, spoof the browser UI, or execute arbitrary code. It was discovered that extensions of a particular type could auto-update themselves and bypass the prompt that requests permissions. If a user were tricked into installing a specially crafted extension, an attacker could potentially exploit this to bypass security restrictions.