CVE-2021-43544

MEDIUM

Firefox < 95.0 - Cross-Site Scripting via SEND Intent URL Handling

Title source: llm
STIX 2.1

Description

When receiving a URL through a SEND intent, Firefox would have searched for the text, but subsequent usages of the address bar might have caused the URL to load unintentionally, which could lead to XSS and spoofing attacks. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 95.

References (2)

Core 2
Core References
Issue Tracking, Permissions Required x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1739934

Scores

CVSS v3 6.1
EPSS 0.0038
EPSS Percentile 59.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
mozilla/firefox < 95.0
Published Dec 08, 2021
Tracked Since Feb 18, 2026