CVE-2023-39921

Name: CVE-2023-39921
Creator: NVD / NIST
Published: 2023-11-30T16:15:09.463+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2023-39921 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Molongui Author Box, Guest Author and Co-Authors for Your Posts – Molongui allows Stored XSS.This issue affects Author Box, Guest Author and Co-Authors for Your Posts – Molongui: from n/a through 4.6.19.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Molongui Author Box, Guest Author and Co-Authors for Your Posts – Molongui allows Stored XSS.This issue affects Author Box, Guest Author and Co-Authors for Your Posts – Molongui: from n/a through 4.6.19.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.39%

30.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Amitzy	Molongui	<= 4.6.19

References

Timeline

Published: Nov 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-39921?

How severe is CVE-2023-39921?

CVE-2023-39921 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39921?

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-2023-39921?

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

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Source: NVD / NIST