What is CVE-2026-4259?

CVE-2026-4259 is a high-severity vulnerability in Ultimate-woocommerce-auction-pro, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-06-22.

How severe is CVE-2026-4259?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Ultimate-woocommerce-auction-pro

CVE-2026-4259

The ultimate-woocommerce-auction-pro WordPress plugin through 2.4.5 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 user…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Unknown Ultimate-woocommerce-auction-pro — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-4259?: CVE-2026-4259 is a high-severity vulnerability in Ultimate-woocommerce-auction-pro, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-06-22.
How severe is CVE-2026-4259?: High severity. CVSS v3 base score is 7.1 out of 10.