CVE-2026-1591— Stored XSS via Attachments Feature in https://pdfonline.foxit.com/
Quick assessment
Affected
Foxit Software Inc. pdfonline.foxit.com
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Foxit PDF Editor Cloud是美国Foxit公司的一个基于浏览器的在线PDF编辑平台。 Foxit PDF Editor Cloud 2026-02-03之前版本存在安全漏洞，该漏洞源于文件上传功能中恶意用户名未正确转义，可能导致存储型跨站脚本攻击。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-1591
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Stored XSS via Attachments Feature in https://pdfonline.foxit.com/
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Foxit PDF Editor Cloud 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Foxit PDF Editor Cloud是美国Foxit公司的一个基于浏览器的在线PDF编辑平台。 Foxit PDF Editor Cloud 2026-02-03之前版本存在安全漏洞，该漏洞源于文件上传功能中恶意用户名未正确转义，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Foxit Software Inc. | pdfonline.foxit.com | before 2026‑02‑03 | - |
|
II. Public POCs for CVE-2026-1591
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-1591
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same product: pdfonline.foxit.com
-
CVE-2026-1592
Stored XSS via Create New Layer Field found in Foxit PDF Edi -
CVE-2025-66522
Foxit pdfonline.foxit.com Stored Cross-Site Scripting in Dig -
CVE-2025-66521
Foxit pdfonline.foxit.com Stored Cross-Site Scripting in Tru -
CVE-2025-66520
Foxit pdfonline.foxit.com Stored Cross-Site Scripting in Por -
CVE-2025-66519
Foxit pdfonline.foxit.com Stored Cross-Site Scripting in Lay
Same vendor: Foxit Software Inc.
-
CVE-2026-91788
Foxit PDF Editor/Reader Missing Authorization Information Di -
CVE-2026-91790
Foxit PDF Editor/Reader Doc Object Use-After-Free Informatio -
CVE-2026-91791
Foxit PDF Editor/Reader Annotation Use-After-Free Remote Cod -
CVE-2026-91792
Foxit PDF Editor/Reader Annotation Use-After-Free Remote Cod -
CVE-2026-91793
Foxit PDF Editor/Reader Doc Object Use-After-Free Informatio
Same weakness: CWE-79
-
CVE-2026-105397
LearnPress WordPress Plugin through 4.4.9.1 Stored XSS via Q -
CVE-2026-105291
feelec-yishu feelcrm-os Department Search Endpoint GroupCont -
CVE-2026-59788
Stored XSS vulnerability in OAuth configuration form -
CVE-2026-105289
feelec-yishu feelcrm-os Create Customer Endpoint CrmDefineFo -
CVE-2026-105288
feelec-yishu feelcrm-os Crm Endpoint functions.php index cro
V. Comments for CVE-2026-1591
No comments yet