CVE-2026-1591

EUVD-2026-5187
Foxit PDF Editor Cloud (pdfonline) contains a stored cross-site scripting vulnerability in the file upload feature. A malicious username is embedded into the upload file list without proper escaping, allowing arbitrary JavaScript execution when the list is displayed.

This issue affects pdfonline.foxit.com: before 2026‑02‑03.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
FoxitCNA
6.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 10%
Affected Products (NVD)
VendorProductVersion
foxitpdf_editor_cloud
𝑥
< 2026-02-03
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.foxit.com/support/security-bulletins.html