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A Universal XSS vulnerability was present in Firefox for...

Moderate severity Unreviewed Published Dec 9, 2021 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

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Affected versions

Unknown

Patched versions

Unknown

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.

References

Published by the National Vulnerability Database Dec 8, 2021
Published to the GitHub Advisory Database Dec 9, 2021
Last updated Feb 1, 2023

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(93rd percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2021-43530

GHSA ID

GHSA-mgfp-hcp6-39f4

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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