CVE-2021-4378

MediumCVSS 5.4/10Last modified Jun 17, 2026

Description

The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with minimal permissions like subscribers, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 7, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-4378: Medium severity, CVSS 5.4 | Vulnix