Vulnerability in Custom 404 Pro

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.

EPSS: 0.776 (99.0th percentile) — read the EPSS interpretation.

Affected products

  • Unknown Custom 404 Pro — versions 0

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-2023?
CVE-2023-2023 is a vulnerability in Custom 404 Pro, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). Published 2023-05-30.
Is CVE-2023-2023 known to be exploited?
13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.