CVE-2021-29953

Medium

Description

A malicious webpage could have forced a Firefox for Android user into executing attacker-controlled JavaScript in the context of another domain, resulting in a Universal Cross-Site Scripting vulnerability. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected. Further details are being temporarily withheld to allow users an opportunity to update.*. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.

SeverityMedium
CVSS6.1
Exploit probability—
ProductMozilla Firefox
PublishedJun 24, 2021
First seenJun 24, 2021

How to fix

Update
  • mozilla firefox88.0.1, 88.1.3 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 88.0.1, v < 88.1.388.0.1, 88.1.3

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