CVE-2026-84701— NocoBase Rich Text Field Stored Cross-Site Scripting via API
Quick assessment
Affected
nocobase nocobase
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.
NocoBase是NocoBase组织开源的一个低代码平台。 NocoBase 2.2.5及之前版本存在跨站脚本漏洞，该漏洞源于读取渲染器未对富文本字段值进行充分清理，具有创建权限的用户可存储包含事件处理程序的恶意HTML，攻击者可通过collection API写入任意标记，在浏览受影响记录的所有用户浏览器中执行，可能导致存储型跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-84701
Vulnerability Information
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Vulnerability Title
NocoBase Rich Text Field Stored Cross-Site Scripting via API
Source: CVE Program / CVE List V5
Vulnerability Description
NocoBase fails to sanitize rich text field values in the read renderer, allowing users with create permissions to store malicious HTML with event handlers. Attackers can write arbitrary markup through the collection API that executes in the browsers of all users viewing the affected record.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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
NocoBase 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NocoBase是NocoBase组织开源的一个低代码平台。 NocoBase 2.2.5及之前版本存在跨站脚本漏洞，该漏洞源于读取渲染器未对富文本字段值进行充分清理，具有创建权限的用户可存储包含事件处理程序的恶意HTML，攻击者可通过collection API写入任意标记，在浏览受影响记录的所有用户浏览器中执行，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
II. Public POCs for CVE-2026-84701
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-84701 (1)
Vendor Pages for CVE-2026-84701 (1)
Other References for CVE-2026-84701 (2)
IV. Related Vulnerabilities
Same product: nocobase
-
CVE-2026-112306
NocoBase plugin-collection-sql through 2.2.28 SQL Injection -
CVE-2026-55410
NocoBase backup restore schema name allows command injection -
CVE-2026-52887
NocoBase: SQL injection in /api/myInAppChannels:list filter -
CVE-2026-52888
NocoBase: Sensitive Data Exposure via SQL Blacklist Bypass -
CVE-2026-58468
NocoBase 2.1.20 Server-Side Request Forgery via serverReques
Same vendor: nocobase
-
CVE-2026-112306
NocoBase plugin-collection-sql through 2.2.28 SQL Injection -
CVE-2026-55410
NocoBase backup restore schema name allows command injection -
CVE-2026-52887
NocoBase: SQL injection in /api/myInAppChannels:list filter -
CVE-2026-52888
NocoBase: Sensitive Data Exposure via SQL Blacklist Bypass -
CVE-2026-58468
NocoBase 2.1.20 Server-Side Request Forgery via serverReques
Same weakness: CWE-79
-
CVE-2026-112249
grandnode grandnode2 Product Description Product.Layout.Simp -
CVE-2023-38375
IBM Cloud Pak System Cross-Site Scripting -
CVE-2026-3295
IBM Cloud Pak System Cross-Site Scripting -
CVE-2026-4413
IBM Concert Software Cross-Site Scripting -
CVE-2026-112247
Wuxi Wubang Security Software Five-in-One Safety Production
V. Comments for CVE-2026-84701
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