CVE-2021-43849

DoS vulnerability

MEDIUM
5.5
CVSS Score
Published: December 23, 2021 at 04:20 PM UTC
Updated: June 17, 2026 at 04:11 AM UTC
2 products affected across 2 vendorsCordova Plugin Fingerprint All in OnePlugin Fingerprint All in One Project Cordova Plugin Fingerprint All in One· also runs on 2 platforms

Using cordova-plugin-fingerprint-aio by NiklasMerz?

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

cordova-plugin-fingerprint-aio is a plugin provides a single and simple interface for accessing fingerprint APIs on both Android 6+ and iOS. In versions prior to 5.0.1 The exported activity `de.niklasmerz.cordova.biometric.BiometricActivity` can cause the app to crash. This vulnerability occurred because the activity didn't handle the case where it is requested with invalid or empty data which results in a crash. Any third party app can constantly call this activity with no permission. A 3rd party app/attacker using event listener can continually stop the app from working and make the victim unable to open it. Version 5.0.1 of the cordova-plugin-fingerprint-aio doesn't export the activity anymore and is no longer vulnerable. If you want to fix older versions change the attribute android:exported in plugin.xml to false. Please upgrade to version 5.0.1 as soon as possible.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.0.1
Affected range stops below 5.0.1, so it looks safe — our inference, not a vendor statement
apple-iphone-os (environment) · google-android (environment)
v < 5.0.1
Affected range stops below 5.0.1, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-617

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