CVE-2021-43530

CVSS V2 Medium 4.3 CVSS V3 Medium 6.1
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.
Overview
  • CVE ID
  • CVE-2021-43530
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-12-08T22:15:09
  • Last Modified Date
  • 2021-12-10T16:56:03
Weakness Enumerations
CWE URL
CWE-79 http://cwe.mitre.org/data/definitions/79.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 94.0
cpe:2.3:o:google:android:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • CHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 6.1
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 2.7
References
Reference URL Reference Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1736886 Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2021-48/ Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-43530
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43530
History
Created Old Value New Value Data Type Notes
2022-05-10 06:41:50 Added to TrackCVE
2022-12-06 03:25:20 2021-12-08T22:15Z 2021-12-08T22:15:09 CVE Published Date updated
2022-12-06 03:25:20 2021-12-10T16:56:03 CVE Modified Date updated
2022-12-06 03:25:20 Analyzed Vulnerability Status updated