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CVE-2026-10234— Mettle sendportal Campaign webview cross site scripting

Quick assessment

Affected
Mettle sendportal
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.

sendportal是Mettle开源的一款自托管邮件营销管理工具。 sendportal 3.0.1及之前版本存在代码注入漏洞，该漏洞源于/webview/文件中Campaign Handler组件对参数content的错误操作，可能导致跨站脚本。

CVSS 3.5 · Low EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 2

VendorProduct Version RangeStatus
Mettle sendportal 3.0.0 affected
3.0.1 affected
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I. Basic Information for CVE-2026-10234

Vulnerability Information
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Vulnerability Title
Mettle sendportal Campaign webview cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in Mettle sendportal up to 3.0.1. This affects an unknown part of the file /webview/ of the component Campaign Handler. The manipulation of the argument content results in cross site scripting. The attack can be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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
sendportal 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
sendportal是Mettle开源的一款自托管邮件营销管理工具。 sendportal 3.0.1及之前版本存在代码注入漏洞，该漏洞源于/webview/文件中Campaign Handler组件对参数content的错误操作，可能导致跨站脚本。
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
Mettle sendportal 3.0.0 cpe:2.3:a:mettle:sendportal:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-10234

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III. Intelligence Information for CVE-2026-10234

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Other References for CVE-2026-10234 (2)

IV. Related Vulnerabilities

Same product: sendportal
Same vendor: Mettle
Same weakness: CWE-79

V. Comments for CVE-2026-10234

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