CVE-2021-30532: Insufficient policy enforcement in Content Security Policy

Published Aug 18, 2020
·
Updated

Insufficient policy enforcement in Content Security Policy in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page.

Credit

Philip Papurt

Affected Software

4 affected componentsFixes available
Google Chrome<91.0.4472.77
91.0.4472.77
Google Chrome<91.0.4472.77
fedoraproject fedora=33
fedoraproject fedora=34

Remediation

Event History

Aug 18, 2020
CVE Published
12:00 AM
Jun 7, 2021
CVE Published
via MITRE·07:25 PM
Data Sourced
via MITRE·07:25 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-30532?

CVE-2021-30532 is a vulnerability in Google Chrome that allows a remote attacker to bypass content security policy.

2

How severe is CVE-2021-30532?

CVE-2021-30532 has a severity rating of 4.3, which is considered medium.

3

Which software versions are affected by CVE-2021-30532?

Google Chrome versions prior to 91.0.4472.77 and Fedora versions 33 and 34 are affected by CVE-2021-30532.

4

How can the content security policy bypass be exploited?

The content security policy bypass in CVE-2021-30532 can be exploited by a remote attacker through a crafted HTML page.

5

How can I fix CVE-2021-30532?

To fix CVE-2021-30532, update Google Chrome to version 91.0.4472.77 or later, or update to a non-affected version of Fedora if using Fedora.

Contact

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