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CVE-2026-42192— Plunk: Stored XSS in campaign view

CVSS 5.4 · Medium EPSS 0.03% · P8
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I. Basic Information for CVE-2026-42192

Vulnerability Information
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Vulnerability Title
Plunk: Stored XSS in campaign view
Source: NVD (National Vulnerability Database)
Vulnerability Description
Plunk is an open-source email platform built on top of AWS SES. Prior to version 0.9.0, a stored cross-site scripting (XSS) vulnerability exists in the campaign management feature, where the email body content created by authenticated project members is stored and later rendered in the admin dashboard using React's dangerouslySetInnerHTML without any HTML sanitization. This allows a lower-privileged member to embed malicious scripts in a campaign's email body that execute in the context of any admin or other member who views the campaign, potentially enabling session hijacking or unauthorized actions on their behalf. This issue has been patched in version 0.9.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
plunk 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
plunk是Plunk开源的一个邮件发送与管理平台。 plunk 0.9.0之前版本存在跨站脚本漏洞，该漏洞源于活动管理功能中电子邮件正文内容使用React的dangerouslySetInnerHTML渲染且无HTML清理，可能导致低权限成员嵌入恶意脚本，在管理员或其他成员查看活动时执行，可能导致会话劫持或未经授权的操作。
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

VendorProductAffected VersionsCPESubscribe
useplunkplunk < 0.9.0 -

II. Public POCs for CVE-2026-42192

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III. Intelligence Information for CVE-2026-42192

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IV. Related Vulnerabilities

Same product: plunk
Same vendor: useplunk
Same weakness: CWE-79

V. Comments for CVE-2026-42192

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