XSS in Ai Builder

CVE-2026-85678

The AI Builder WordPress plugin before 2.7.8 does not sanitise custom JavaScript saved against a post before echoing it inside a script tag on the front end, allowing users with contributor level access and above to store arbitrary JavaScript that will execute in the browser of anyone who views the post, including the editor or administrator who reviews it.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

Affected products

  • Unknown Ai Builder

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-85678?
CVE-2026-85678 is a medium-severity vulnerability in Ai Builder, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-09-11.
How severe is CVE-2026-85678?
Medium severity. CVSS v3 base score is 6.8 out of 10.