6.3

CVE-2026-1591: foxit software inc. pdfonline.foxit.com Cross-site Scripting

CVSS: 6.3v3.1MediumAnalyzed
Published 03-02-2026Last modified 03-02-2026
Open JSON

Vulnerability summary

CVE-2026-1591 is a medium (CVSS 6.3) Cross-site Scripting vulnerability in foxit software inc. pdfonline.foxit.com. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.7% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.23%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-02-2026
    PublishedVulnerability first disclosed.
  2. 03-02-2026
    Last modifiedVulnerability information updated.

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 metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

+0.03 pp

From 0.20% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Foxit1 product
Foxit software inc.1 product

2 vendors · 2 products

References

1 links