CVE-2006-0884

What it is

The WYSIWYG rendering engine ("rich mail" editor) in Mozilla Thunderbird 1.0.7 and earlier allows user-assisted attackers to bypass javascript security settings and obtain sensitive information or cause a crash via an e-mail containing a javascript URI in the SRC attribute of an IFRAME tag, which is executed when the user edits the e-mail.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

7.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2006-02-24 22:02 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:21 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 7.2% in the next 30 days (EPSS).
• Severity: 9.3 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2006-02-24 22:02 UTC

Last modified

2026-06-16 22:21 UTC

Exploit probability

7.2% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Mozilla Thunderbird ≤ 1.0.7
• Mozilla Thunderbird 0.1
• Mozilla Thunderbird 0.2
• Mozilla Thunderbird 0.3
• Mozilla Thunderbird 0.4
• Mozilla Thunderbird 0.5
• Mozilla Thunderbird 0.6
• Mozilla Thunderbird 0.7

Attack profile CVSS 2.0 · 9.3

Attack vector

Network

Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2006-0884.md and follow it. Check whether this project is affected by CVE-2006-0884. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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