CVE-2022-29911

Description

An improper implementation of the new iframe sandbox keyword <code>allow-top-navigation-by-user-activation</code> could lead to script execution without <code>allow-scripts</code> being present. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.09%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2022-16/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-18/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-17/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1761981 permissions required issue tracking vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-29911?
CVE-2022-29911 has been scored as a medium severity vulnerability.
How to fix CVE-2022-29911?
To fix CVE-2022-29911, 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-2022-29911 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-29911 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-2022-29911?
CVE-2022-29911 affects Mozilla Thunderbird, Mozilla Firefox ESR, Mozilla Firefox.
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