CVE-2024-0747

Description

When a parent page loaded a child in an iframe with `unsafe-inline`, the parent Content Security Policy could have overridden the child Content Security Policy. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.46%
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://bugzilla.mozilla.org/show_bug.cgi?id=1764343 issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2024-01/ vendor advisory release notes
https://www.mozilla.org/security/advisories/mfsa2024-02/ vendor advisory release notes
https://www.mozilla.org/security/advisories/mfsa2024-04/ vendor advisory release notes
https://lists.debian.org/debian-lts-announce/2024/01/msg00015.html mailing list third party advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00022.html mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2024-0747?
CVE-2024-0747 has been scored as a medium severity vulnerability.
How to fix CVE-2024-0747?
To fix CVE-2024-0747, 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-2024-0747 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-0747 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-2024-0747?
CVE-2024-0747 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
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