CVE-2022-22760 Information disclosure in Firefox
An attacker can learn cross-origin information by distinguishing script and non-script responses during Web Worker imports in Firefox and Thunderbird.
- 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
- Available
What is CVE-2022-22760?
CVE-2022-22760 is a medium-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. 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
When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
Weakness: CWE-209
Which versions are affected by CVE-2022-22760?
It affects 3 products.
Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2022-22760?
Upgrade to a fixed version.
Is CVE-2022-22760 being exploited?
There is no known exploitation of CVE-2022-22760 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as DEBIAN-CVE-2022-22760, GHSA-mpq8-m953-pwhf, UBUNTU-CVE-2022-22760.