CVE-2022-46873

Name: CVE-2022-46873
Creator: NVD / NIST
Published: 2022-12-22T20:15:46.027+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2022-46873 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Because Firefox did not implement the <code>unsafe-hashes</code> CSP directive, an attacker who was able to inject markup into a page otherwise protected by a Content Security Policy may have been able to inject executable script. This would be severely constrained by the specified Content Security Policy of the document. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

Because Firefox did not implement the <code>unsafe-hashes</code> CSP directive, an attacker who was able to inject markup into a page otherwise protected by a Content Security Policy may have been able to inject executable script. This would be severely constrained by the specified Content Security Policy of the document. This vulnerability affects Firefox < 108.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.70%

48.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 108.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1644790Issue Tracking
https://security.gentoo.org/glsa/202305-06
https://www.mozilla.org/security/advisories/mfsa2022-51/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1644790Issue Tracking
https://security.gentoo.org/glsa/202305-06
https://www.mozilla.org/security/advisories/mfsa2022-51/Vendor Advisory

Timeline

Published: Dec 22, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-46873?

How severe is CVE-2022-46873?

CVE-2022-46873 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2022-46873?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-46873?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST