What is CVE-2023-45604?

CVE-2023-45604 is a medium-severity vulnerability in Get Custom Field Values Project, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2023-10-18.

How severe is CVE-2023-45604?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Is CVE-2023-45604 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Get Custom Field Values Project

CVE-2023-45604

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Scott Reilly Get Custom Field Values plugin <= 4.0.1 versions.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-10-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (22.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

patchstack.com/database/vulnerability/get-custom-field-values/wordpress-get-cus… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-45604?: CVE-2023-45604 is a medium-severity vulnerability in Get Custom Field Values Project, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2023-10-18.
How severe is CVE-2023-45604?: Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2023-45604 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.