CVE-2022-22761

Description

Web-accessible extension pages (pages with a moz-extension:// scheme) were not correctly enforcing the frame-ancestors directive when it was used in the Web Extension's Content Security Policy. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.20%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Thunderbird
Affected: Mozilla Firefox ESR
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2022-05/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-04/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-06/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1745566 issue tracking vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-22761?
CVE-2022-22761 has been scored as a high severity vulnerability.
How to fix CVE-2022-22761?
To fix CVE-2022-22761, 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-2022-22761 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-22761 is being actively exploited. 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-2022-22761?
CVE-2022-22761 affects Mozilla Firefox, Mozilla Thunderbird, Mozilla Firefox ESR.
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