CVE-2026-109385: UiChemy <= 5.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Slot Link URL
The UiChemy – Convert Figma, Prompts and AI Builds to Elementor, Gutenberg and Bricks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'actions[savebuilder][data][elements][...][settings][slot{N}link][url]' parameter in all versions up to, and including, 5.3.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected javascript: payload fires on click rather than on page load, making exploitation contingent on a privileged user such as an Editor or Administrator clicking the attacker-crafted link while reviewing or previewing the Contributor's post.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue, and who must interact with the malicious content?
An authenticated WordPress user with Contributor-level access or higher can inject the stored payload. Exploitation requires an Editor, Administrator, or another privileged user to click the attacker-crafted link while reviewing or previewing the Contributor's post.
Does the payload execute automatically when an affected page is opened?
No. The described javascript: payload executes on click rather than on page load, so a privileged user must click the injected link.
Which installations are affected?
UiChemy versions up to and including 5.3.0 are affected. The issue is in the slot link URL parameter used when saving builder data.