XSS in Easy Form Builder By Whitestudio

CVE-2026-85122

The Easy Form Builder by WhiteStudio WordPress plugin before 4.2.0 does not validate a submitted value against the stored configuration for some of its form types, allowing unauthenticated users to store arbitrary content which is then rendered unescaped in an admin page, leading to Stored XSS.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (43.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-85122: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Easy Form Builder By Whitestudio

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-85122?
CVE-2026-85122 is a high-severity vulnerability in Easy Form Builder By Whitestudio, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-09-18.
How severe is CVE-2026-85122?
High severity. CVSS v3 base score is 8.8 out of 10.