EUVD-2026-30521
GHSA-59fm-cmjw-gc79
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
2DescriptionNVD
The Advanced Custom Fields: Font Awesome plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 5.0.2. This is due to insufficient input validation of JSON field values and unsafe client-side HTML construction in the update_preview() JavaScript function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AnalysisAI
Stored Cross-Site Scripting in Advanced Custom Fields: Font Awesome plugin for WordPress up to version 5.0.2 allows authenticated attackers with Subscriber-level access to inject arbitrary JavaScript via insufficiently validated JSON field values in the update_preview() function, resulting in script execution whenever any user visits an affected page. The vulnerability requires user interaction only in the sense that a victim must visit a page containing injected content; the attacker needs only Subscriber-level authentication to craft the malicious payload.
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