CVE-2022-26384

Public Exploit

Description

If an attacker could control the contents of an iframe sandboxed with <code>allow-popups</code> but not <code>allow-scripts</code>, they were able to craft a link that, when clicked, would lead to JavaScript execution in violation of the sandbox. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

Category

9.6
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2022-12/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-10/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-11/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1744352 issue tracking exploit vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-26384?
CVE-2022-26384 has been scored as a critical severity vulnerability.
How to fix CVE-2022-26384?
To fix CVE-2022-26384, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-26384 being actively exploited in the wild?
It is possible that CVE-2022-26384 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-26384?
CVE-2022-26384 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
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