What is CVE-2023-36503?

CVE-2023-36503 is a medium-severity vulnerability in Max Foundry WordPress Button Plugin Maxbuttons, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2023-07-25.

How severe is CVE-2023-36503?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-36503 known to be exploited?

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

XSS in Max Foundry WordPress Button Plugin Maxbuttons

CVE-2023-36503

Auth. (contributor+) Cross-Site Scripting (XSS) vulnerability in Max Foundry WordPress Button Plugin MaxButtons plugin <= 9.5.3 versions.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-07-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (29.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · 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/maxbuttons/wordpress-wordpress-button-plu… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-36503?: CVE-2023-36503 is a medium-severity vulnerability in Max Foundry WordPress Button Plugin Maxbuttons, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2023-07-25.
How severe is CVE-2023-36503?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-36503 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.