CVE-2021-43530 — Cross-site Scripting in Mozilla Firefox

CWE-79 — Cross-site Scripting4 documents4 sources
Severity
6.1MEDIUMNVD
EPSS
6.0%
top 9.25%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedDec 8
Latest updateDec 9

Description

A Universal XSS vulnerability was present in Firefox for Android resulting from improper sanitization when processing a URL scanned from a QR code. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 94.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages4 packages

▶debiandebian/firefox< firefox 94.0-1 (sid)
▶CVEListV5mozilla/firefoxunspecified — 94
▶NVDmozilla/firefox< 94.0
▶mozillamozilla/firefox

🔴Vulnerability Details

1
GHSA
GHSA-mgfp-hcp6-39f4: A Universal XSS vulnerability was present in Firefox for Android resulting from improper sanitization when processing a URL scanned from a QR code↗2021-12-09
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📋Vendor Advisories

2
Debian
CVE-2021-43530: firefox - A Universal XSS vulnerability was present in Firefox for Android resulting from ...↗2021
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Mozilla
Mozilla Foundation Security Advisory 2021-48: CVE-2021-43530↗
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