CVE-2024-43111 Cross-site scripting in Firefox for iOS

What is CVE-2024-43111?

CVE-2024-43111 is a critical cross-site scripting vulnerability in Mozilla Firefox Mobile, published on 6 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Long pressing on a download link could potentially allow Javascript commands to be executed within the browser This vulnerability affects Firefox for iOS < 129.

Weakness: CWE-79

Which versions are affected by CVE-2024-43111?

It affects 1 product.

Products include Mozilla Firefox Mobile.

How do I fix CVE-2024-43111?

No fix has been published for CVE-2024-43111 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-43111 being exploited?

There is no known exploitation of CVE-2024-43111 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox Mobile

• CVE-2026-84135 Other issue in Firefox Focus for Android Critical 9.8
• CVE-2023-49060 Information disclosure in Firefox for iOS Critical 9.8
• CVE-2026-92033 Privilege escalation in Firefox for Android High 8.8
• CVE-2026-84117 Privilege escalation in Firefox for Android High 8.8
• CVE-2021-29993 Other in Firefox High 8.1

All Mozilla Firefox Mobile vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-cr8r-7g9p-hcx6.