CVE-2026-94264 Advanced Custom Fields: Extended 0.8.9.4 - 0.9.2.7 - Contributor+ XSS via Form Shortcode Attributes
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-94264?
CVE-2026-94264 is a medium-severity vulnerability in Unknown Advanced Custom Fields: Extended, published on 23 Oct 2026.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-94264?
How do I fix CVE-2026-94264?
No fix has been published for CVE-2026-94264 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-94264 being exploited?
There is no known exploitation of CVE-2026-94264 in the wild and no public exploit code.
Sources
Also known as GHSA-x437-3m7g-hfr2.