What is CVE-2025-13456?

CVE-2025-13456 is a medium-severity vulnerability in Shopbuilder, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 6.1/10. Published 2026-01-02.

How severe is CVE-2025-13456?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Shopbuilder

CVE-2025-13456

The ShopBuilder WordPress plugin before 3.2.2 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

Published 2026-01-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (11.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000

Affected products

Shopbuilder — versions 0

References

wpscan.com/vulnerability/5872ece6-52cb-4306-b7ee-41282815a243/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2025-13456?: CVE-2025-13456 is a medium-severity vulnerability in Shopbuilder, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 6.1/10. Published 2026-01-02.
How severe is CVE-2025-13456?: Medium severity. CVSS v3 base score is 6.1 out of 10.