What is CVE-2021-36910?

CVE-2021-36910 is tracked as a Stored Cross-Site Scripting issue affecting the Plugin WP-Appbox.

Which WP-Appbox versions are affected?

The primary affected range is Versions up to 4.3.20.

How should operators remediate CVE-2021-36910?

Update to 4.3.21 or newer where that release is compatible with the site.

Vulnerability Report

Plugin Medium Patch path listed CVE-2021-36910

WP-Appbox <= 4.3.20 - Authenticated (Admin+) Stored Cross-Site Scripting

Authenticated (admin user role) Stored Cross-Site Scripting (XSS) in WP-Appbox (WordPress plugin) <= 4.3.20.

Quick Answer

CVE-2021-36910 is a medium severity with CVSS 4.8 Stored Cross-Site Scripting issue affecting the Plugin WP-Appbox. It affects Versions up to 4.3.20 and is fixed in 4.3.21.

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Published

Apr 05, 2022

Last Updated

Jan 22, 2024

Slug

wp-appbox

Risk Profile

4.8 CVSS Score

Weakness

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

Vector

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

Researchers

mirphak

Operational Summary

What the operator needs to know

Share Email

Patch Status

Patched release is available

Remediation

Update to version 4.3.21, or a newer patched version

Operator Briefing

CVE-2021-36910 is tracked for the Plugin WP-Appbox as medium severity with CVSS 4.8. The affected range is Versions up to 4.3.20. Update WP-Appbox to 4.3.21 or newer where that version is compatible with the site.

Issue Type

Stored Cross-Site Scripting

Primary Fixed Version

4.3.21

Primary Affected Range

Versions up to 4.3.20

Tracking ID

CVE-2021-36910

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/73c3dfc7-58de-4b24-ad91-0f8040d1f75e?source=api-prod

Detailed Metadata

Software Type	Plugin
Software Slug	wp-appbox View on wordpress.org
CVE	CVE-2021-36910
Patched Versions	4.3.21
Affected Versions	Versions up to 4.3.20

Related CVE Cluster

Related CVEs for WP-Appbox

These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.

Medium CVE-2025-1489 4.5.5 Feb 20, 2025

CVE-2025-1489 WP-Appbox Stored Cross-Site Scripting

WP-Appbox <= 4.5.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via appbox Shortcode

Medium CVE-2024-12710 4.5.4 Dec 23, 2024

CVE-2024-12710 WP-Appbox Cross-Site Scripting

WP-Appbox <= 4.5.3 - Reflected Cross-Site Scripting

High 4.3.18 Jan 17, 2022

WP-Appbox Local File Inclusion

WP-Appbox <= 4.3.17 - Local File Inclusion

Licensing Notices

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DEFIANT

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MITRE

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