The default webcal: protocol handler will load a web site vulnerable to cross-site scripting (XSS) attacks. This default was left in place as a legacy feature and has now been removed. *Note: this issue only affects users with an account on the vulnerable service. Other users are unaffected.*. This vulnerability affects Firefox < 67.

Related CVEs

CVE-2019-11701

Key Information

GHSA ID

GHSA-frqr-7x7p-q8jj

Published

May 24, 2022 4:50 PM

Last Modified

April 4, 2024 1:20 AM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: September 15, 2025 6:32 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.