CVE-2026-94264mediumCWE-79

CVE-2026-94264: medium-severity vulnerability in Advanced Custom Fields: Extended

Advanced Custom Fields: Extended 0.8.9.4 - 0.9.2.7 - Contributor+ XSS via Form Shortcode Attributes

Published

Follow this CVE+ Monitor Advanced Custom Fields: Extended+ Monitor Advanced Custom Fields: Extended PRO

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.8epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Affected products
Unknown · Advanced Custom Fields: ExtendedUnknown · Advanced Custom Fields: Extended PRO
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Advanced Custom Fields: Extended

In the same product, most dangerous first.

CVE-2021-24865—Advanced Custom Fields: Extended < 0.8.8.7 - Admin+ SQL InjectionEPSS 1.5%CVE-2026-94267CRITICALAdvanced Custom Fields: Extended < 0.9.2.8 - Unauthenticated RCE via Front-End Post Update ActionEPSS 0.4%CVE-2026-80467HIGHAdvanced Custom Fields: Extended 0.9.2.2 - 0.9.2.6 - Unauthenticated Privilege Escalation via Front-End User Insert ActionEPSS 0.4%CVE-2026-12526HIGHAdvanced Custom Fields: Extended < 0.9.2.7 - Unauthenticated Administrator Account Takeover via Front-End User Update ActionEPSS 0.4%CVE-2026-94268HIGHAdvanced Custom Fields: Extended 0.9.2.7 - Unauthenticated Administrator Account Takeover via Front-End User Update ActionEPSS 0.3%CVE-2026-94262HIGHAdvanced Custom Fields: Extended 0.9.2.7 - Unauthenticated Non-Administrator Account Takeover via Front-End User Update ActionEPSS 0.3%