Mozilla Firefox up to 147.2.0 on iOS New Tab Page Loading clickjacking

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 147.2.0 on iOS and classified as problematic. This issue affects some unknown processing of the component New Tab Page Loading. Such manipulation leads to clickjacking. This vulnerability is documented as CVE-2026-2032. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Mozilla Firefox up to 147.2.0 on iOS. Affected by this issue is an unknown code of the component New Tab Page Loading. The manipulation with an unknown input leads to a clickjacking vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof arbitrary HTML under a trusted domain. This vulnerability affects Firefox for iOS < 147.2.1.

The advisory is shared for download at bugzilla.mozilla.org. This vulnerability is handled as CVE-2026-2032 since 02/06/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 03/10/2026). The MITRE ATT&CK project declares the attack technique as T1566.003.

The vulnerability scanner Nessus provides a plugin with the ID 299344 (Linux Distros Unpatched Vulnerability : CVE-2026-2032), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 147.2.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (299344), EUVD (EUVD-2026-6083) and CERT Bund (WID-SEC-2026-0427). Once again VulDB remains the best source for vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• RESF Rocky Linux
• Mozilla Firefox
• Mozilla Firefox ESR
• Mozilla Thunderbird

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

Version

• 147.0
• 147.1
• 147.2.0

License

• open-source

Website

• Vendor: https://www.mozilla.org/
• Product: https://www.mozilla.org/en-US/firefox/

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Once again VulDB remains the best source for vulnerability data.

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