Mozilla Thunderbird about Dialog clickjacking

Summaryinfo

A vulnerability identified as problematic has been detected in Mozilla Thunderbird. The impacted element is an unknown function of the component about Dialog Handler. Performing a manipulation results in clickjacking. This vulnerability is identified as CVE-2024-0749. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Mozilla Thunderbird (Web Browser) (affected version not known). This affects some unknown functionality of the component about Dialog Handler. The manipulation with an unknown input leads to a clickjacking vulnerability. CWE is classifying the issue as CWE-451. The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks. This is going to have an impact on integrity. The summary by CVE is:

A phishing site could have repurposed an `about:` dialog to show phishing content with an incorrect origin in the address bar. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

The weakness was released 01/23/2024. The advisory is shared at bugzilla.mozilla.org. This vulnerability is uniquely identified as CVE-2024-0749 since 01/19/2024. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/19/2025). MITRE ATT&CK project uses the attack technique T1566.003 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 239868 (TencentOS Server 3: thunderbird (TSSA-2024:0054)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (239868). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Thunderbird

License

• open-source

Website

• Vendor: https://www.mozilla.org/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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