CVE-2023-45829

Name: CVE-2023-45829
Creator: NVD / NIST
Published: 2023-10-25T18:17:34.953+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2023-45829 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in HappyBox Newsletter & Bulk Email Sender – Email Newsletter Plugin for WordPress plugin <= 2.0.1 versions.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in HappyBox Newsletter & Bulk Email Sender – Email Newsletter Plugin for WordPress plugin <= 2.0.1 versions.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.40%

31.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Happybox	Newsletter \& Bulk Email Sender	<= 2.0.1

References

Timeline

Published: Oct 25, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45829?

Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in HappyBox Newsletter & Bulk Email Sender – Email Newsletter Plugin for WordPress plugin <= 2.0.1 versions.

How severe is CVE-2023-45829?

CVE-2023-45829 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45829?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-45829?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST