What is the CVSS score of CVE-2023-4840?

CVE-2023-4840 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Is there a patch available for CVE-2023-4840?

Yes, a patch is available for CVE-2023-4840. Update the affected software to the latest version immediately.

Mappress CVE-2023-4840

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2023-09-12 security@wordfence.com

XSS WordPress Mappress

6.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch released

Apr 08, 2026 - 19:38 nvd

Patch available

CVE Published

Sep 12, 2023 - 02:15 nvd

MEDIUM 6.4

DescriptionCVE.org

The MapPress Maps for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'mappress' shortcode in versions up to, and including, 2.88.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AnalysisAI

The MapPress Maps for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'mappress' shortcode in versions up to, and including, 2.88.4 due to insufficient input. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The MapPress Maps for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'mappress' shortcode in versions up to, and including, 2.88.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Affected products include: Mappresspro Mappress.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.