CVE-2021-29975: Medium severity firefox vulnerability

Published Jul 13, 2021
·
Updated

Through a series of DOM manipulations, a message, over which the attacker had control of the text but not HTML or formatting, could be overlaid on top of another domain (with the new domain correctly shown in the address bar) resulting in possible user confusion.

Affected Software

2 affected componentsFixes available
Mozilla Firefox<90
90
Mozilla Firefox<90.0

Event History

Jul 13, 2021
CVE Published
12:00 AM
Aug 5, 2021
CVE Published
via MITRE·07:46 PM
Data Sourced
via MITRE·07:46 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2021-29975?

CVE-2021-29975 has a severity rating that suggests potential user confusion due to misleading DOM manipulation.

2

How do I fix CVE-2021-29975?

To fix CVE-2021-29975, update Mozilla Firefox to version 90 or later.

3

What versions of Firefox are affected by CVE-2021-29975?

CVE-2021-29975 affects all versions of Mozilla Firefox prior to version 90.

4

Can CVE-2021-29975 lead to phishing attacks?

Yes, CVE-2021-29975 may create conditions that facilitate phishing by overlaying a misleading message.

5

What type of vulnerability is CVE-2021-29975?

CVE-2021-29975 is classified as a DOM-based vulnerability that can result in user confusion.

Contact

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