A local user can create a legitimate looking email with malicious links to a specific URL, which when clicked on, could allow an attacker to perform cross-site scripting attacks. If a user follows a crafted link and visits a malicious website, an attacker could exploit this vulnerability to execute arbitrary script code in the user’s browser.

Vulnerability Information and References

The vulnerability is documented in CVE-2022-40710.

Vulnerability Details:

A local user can create a legitimate looking email with malicious links to a specific URL
This vulnerability was discovered in Thunderbird’s implementation of XBL bindings. It does not affect Firefox or other Mozilla products, but it is present in the latest version of Thunderbird.

Vulnerability Introduction:

This vulnerability allows an attacker to execute arbitrary script code on a user’s browser by visiting a malicious website. There are two possible ways this can be exploited:

1) A local user can create a legitimate looking email with malicious links to a specific URL, which when clicked on, could allow an attacker to perform cross-site scripting attacks. If the user clicks one of these links, they will visit the malicious website and the attacker can exploit this vulnerability.
2) An attacker may use social engineering techniques such as phishing to trick users into clicking on the malicious link in the email. This includes sending emails that look like they are from trusted companies or institutions, and then having them download malware that exploits this vulnerability.

Vulnerability Details

A user browsing a legitimate website could click on a link that would take them to a malicious website. The malicious website could then exploit this vulnerability to perform cross-site scripting attacks.

The solution to this vulnerability is to not follow links from websites that aren't within your trusted network.

Timeline

Published on: 09/28/2022 21:15:00 UTC
Last modified on: 09/29/2022 15:07:00 UTC

References