1. Home
  2. CVE Database
  3. CVE-2026-1591
MEDIUM · 6.3

CVE-2026-1591

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, ...

Vulnerability Description

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.

CVSS Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
FoxitPdf Editor Cloud< 2026-02-03

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2026-1591?

CVE-2026-1591 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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, ...

How severe is CVE-2026-1591?

CVE-2026-1591 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-1591?

Check the references section above for vendor advisories and patch information. Affected products include: Foxit Pdf Editor Cloud.