6.3Medium
CVE-2025-66500Foxit webplugins.foxit.com Stored Cross-Site Scripting via postMessage Vulnerability
Description
A stored cross-site scripting (XSS) vulnerability exists in webplugins.foxit.com. A postMessage handler fails to validate the message origin and directly assigns externalPath to a script source, allowing an attacker to execute arbitrary JavaScript when a crafted postMessage is received.
Weakness (CWE):
CWE-79
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| foxit | pdf editor cloud | < 2025-12-01 | |
| Foxit Software Inc. | webplugins.foxit.com | before 2025‑12‑01 |
References and patches
- https://www.foxit.com/support/security-bulletins.html Vendor Advisory
CPE matches (NVD) (1)
cpe:2.3:a:foxit:pdf_editor_cloud:*:*:*:*:*:*:*:*< 2025-12-01