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CVE-2026-76837— Baserow before 2.3.0 Stored Cross-Site Scripting via Rich Text Mention Display Name

Quick assessment

Affected
Baserow Baserow
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.

Baserow是Baserow团队开源的一款数据库管理平台。 Baserow 2.3.0之前版本存在跨站脚本漏洞，该漏洞源于未对用户的显示名进行HTML编码，可能导致存储型跨站脚本攻击。

CVSS 6.4 · Medium EPSS 0.33% · P25

Affected Version Matrix 1

VendorProduct Version RangeStatus
Baserow Baserow < 2.3.0 affected
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I. Basic Information for CVE-2026-76837

Vulnerability Information
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Vulnerability Title
Baserow before 2.3.0 Stored Cross-Site Scripting via Rich Text Mention Display Name
Source: CVE Program / CVE List V5
Vulnerability Description
Baserow interpolates a user's display name into the rich-text mention markup without HTML encoding. PATCH /api/user/account/ stores the first_name value verbatim, and the mention renderer in web-frontend/modules/core/editor/mention.js builds its element with a template literal that places the name into a data-label attribute and the element body unescaped. A name containing a double quote closes that attribute and the opening tag, so following markup lands in the element content. The result is rendered through v-html by the rich-text field components, so any rich-text cell mentioning the account executes the stored script for every workspace member who views the table, without a click. Any workspace member, at the lowest permission level, can set the name and reach every other member of the workspace, and the payload persists until the name is changed or the mentioning row is removed. Version 2.3.0 escapes the value before interpolation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
Baserow 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Baserow是Baserow团队开源的一款数据库管理平台。 Baserow 2.3.0之前版本存在跨站脚本漏洞，该漏洞源于未对用户的显示名进行HTML编码，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
Baserow Baserow 0 ~ 2.3.0 -

II. Public POCs for CVE-2026-76837

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III. Intelligence Information for CVE-2026-76837

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Patches & Fixes for CVE-2026-76837 (2)

Other References for CVE-2026-76837 (3)

IV. Related Vulnerabilities

Same product: Baserow
Same vendor: Baserow
Same weakness: CWE-79

V. Comments for CVE-2026-76837

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