CVE-2004-2226 Information disclosure in n/a

Medium 5.0 Published Updated

Remote attackers can determine valid email addresses by sending HTML emails that reference external CSS files, requiring the user to view the email.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2004-2226?

CVE-2004-2226 is a medium-severity vulnerability in Mozilla Thunderbird, published on 17 Jul 2005. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Mozilla Mail 1.7.1 and 1.7.3, and Thunderbird before 0.9, when HTML-Mails is enabled, allows remote attackers to determine valid e-mail addresses via an HTML e-mail that references a Cascading Style Sheets (CSS) document on the attacker's server.

Which versions are affected by CVE-2004-2226?

It affects 1 product.

Products include Mozilla Thunderbird.

How do I fix CVE-2004-2226?

No fix has been published for CVE-2004-2226 yet. Limit exposure of the affected software until one is available.

Is CVE-2004-2226 being exploited?

There is no known exploitation of CVE-2004-2226 in the wild and no public exploit code.

All Mozilla Thunderbird vulnerabilities

Sources

Also known as GHSA-f2c7-j9r7-mm93.

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