CVE-2023-2023

Name: CVE-2023-2023
Creator: NVD / NIST
Published: 2023-05-30T08:15:09.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.71%

Last modified Jun 17, 2026

CVE-2023-2023 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting.. EPSS estimates a 1.71% chance of exploitation in the next 30 days.

Description

The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.71%

74.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Kunalnagar	Custom 404 Pro	< 3.7.3

References

Timeline

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

Frequently Asked Questions

What is CVE-2023-2023?

The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting.

How severe is CVE-2023-2023?

CVE-2023-2023 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.71% probability of exploitation in the next 30 days.

How do I fix CVE-2023-2023?

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-2023-2023?

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

Scan your code now

Source: NVD / NIST