CVE-2025-66520 — Cross-site Scripting in PDF Editor Cloud

CWE-79 — Cross-site Scripting3 documents3 sources
Severity
5.4MEDIUMNVD
CNA6.3
EPSS
0.0%
top 86.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Foxit PDF Editor CloudFoxit Software INC Pdfonline.foxit.com
Timeline
PublishedDec 19

Description

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 vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NExploitability: 2.3 | Impact: 2.7

Affected Packages2 packages

▶NVDfoxit/pdf_editor_cloud< 2025-12-01
▶CVEListV5foxit_software_inc/pdfonline.foxit.combefore 2025‑12‑01

🔴Vulnerability Details

2
CVEList
Foxit pdfonline.foxit.com Stored Cross-Site Scripting in Portfolio SVG Handling↗2025-12-19
▶
GHSA
GHSA-fggr-pw4j-mqwr: A stored cross-site scripting (XSS) vulnerability exists in the Portfolio feature of the Foxit PDF Editor cloud (pdfonline↗2025-12-19
▶
CVE-2025-66520 — Cross-site Scripting | cvebase