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Step into the gym at Black Hat 2026.
MEDIUM

CVE-2025-66501 - Stored XSS in Page Templates

Discovered By Lidor Ben Shitrit Published on 23 Dec, 2025

Description

A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Predefined Text feature of the Foxit eSign section. A crafted payload can be stored via the Identity “First Name” field, which is later rendered into the DOM without proper sanitization. As a result, the injected script may execute when predefined text is used or when viewing document properties.

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