CVE-2025-66520

Foxit pdfonline.foxit.com Stored Cross-Site Scripting in Portfolio SVG Handling

CVSS 6.3 MEDIUMEPSS 0.1%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.3EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

19 Dec 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A stored cross-site scripting (XSS) vulnerability exists in the Portfolio feature of the Foxit PDF Editor cloud (pdfonline.foxit.com). User-supplied SVG files are not properly sanitized or validated before being inserted into the HTML structure. As a result, embedded HTML or JavaScript within a crafted SVG may execute whenever the Portfolio file list is rendered.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

Affected products

Foxit Software Inc. · pdfonline.foxit.com

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

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