CVE-2021-29971
First published: Tue Jul 13 2021(Updated: )
If a user had granted a permission to a webpage and saved that grant, any webpage running on the same host - irrespective of scheme or port - would be granted that permission. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 90.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <90 | 90 |
| <90 | 90 | |
| Mozilla Firefox | <90.0 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2021-29971?
CVE-2021-29971 has a moderate severity rating due to the potential for unauthorized permissions being granted to webpages.
How do I fix CVE-2021-29971?
To fix CVE-2021-29971, update your Firefox for Android to version 90 or later.
Who is affected by CVE-2021-29971?
CVE-2021-29971 affects users of Firefox for Android versions earlier than 90.
What kind of permissions are impacted by CVE-2021-29971?
CVE-2021-29971 allows any webpage running on the same host to inherit permissions granted to a different webpage.
Is CVE-2021-29971 a concern for desktop Firefox users?
No, CVE-2021-29971 does not affect desktop versions of Firefox, only Firefox for Android.
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