AUGUST 5, 2026
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Case File

CVE-2021-23968

MEDIUM · CVSS 4.3 EPSS 1.21%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-26 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It affects Firefox.

CVE
CVE-2021-23968
Severity
MEDIUM
CVSS
4.3
EPSS
1.21%
Firefox

Original NVD Description

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Related CVEs

Other vulnerabilities affecting the same vendor(s)