XSS in Advanced Custom Fields: Extended
CVE-2026-94264
The Advanced Custom Fields: Extended WordPress plugin before 0.9.2.8, Advanced Custom Fields: Extended PRO WordPress plugin before 0.9.2.8 does not validate or escape some of its form shortcode attributes, which can be pointed at values taken from the visitor's own request and are then output without escaping, allowing users with a role as low as contributor to have arbitrary script run in the browser of anyone led to open a crafted link or page, including a logged-in administrator. This is an incomplete fix for CVE-2023-5292, whose deny-list covers only the three HTML wrapper attributes.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Advanced Custom Fields: Extended
Weakness classification (CWE)
References
- wpscan.com/vulnerability/4475b8a6-0d25-49b2-b973-5e19b8958595/ (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-94264?
- CVE-2026-94264 is a medium-severity vulnerability in Advanced Custom Fields: Extended, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-10-23.
- How severe is CVE-2026-94264?
- Medium severity. CVSS v3 base score is 6.8 out of 10.