CVE-2026-110813highCWE-79

CVE-2026-110813: high-severity vulnerability in Advanced Custom Fields (ACF®)

Advanced Custom Fields (ACF®) < 6.8.11 - Unauthenticated Stored XSS via HTML Attribute Name Injection

Published

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41Vexday Risk Score

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

ssvc Attendcvss 7.5epss 0.3%
The Advanced Custom Fields (ACF®) WordPress plugin before 6.8.11 does not properly sanitize a stored field definition that can be modified through its comment handling, allowing unauthenticated users to inject a payload that is emitted as an HTML attribute name and executed as JavaScript in the browser of any visitor or administrator who views a page rendering the affected field.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Unknown · Advanced Custom Fields (ACF®)
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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