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CVE-2022-39279— Discourse-chat plugin susceptible to XSS in channel name and description

Quick assessment

Affected
discourse discourse-chat
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.

Discourse是一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse discourse-chat 0.9之前的版本存在跨站脚本漏洞，该漏洞源于其有些地方会以不安全的方式呈现聊天频道的名称和描述允许攻击者通过在其中插入不安全的HTML来引发跨站脚本。

CVSS 4.3 · Medium EPSS 0.40% · P33

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2022-39279

Vulnerability Information
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Vulnerability Title
Discourse-chat plugin susceptible to XSS in channel name and description
Source: CVE Program / CVE List V5
Vulnerability Description
discourse-chat is a plugin for the Discourse message board which adds chat functionality. In versions prior to 0.9 some places render a chat channel's name and description in an unsafe way, allowing staff members to cause an cross site scripting (XSS) attack by inserting unsafe HTML into them. Version 0.9 has addressed this issue. Users are advised to upgrade. There are no known workarounds for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
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
Discourse 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discourse是一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse discourse-chat 0.9之前的版本存在跨站脚本漏洞，该漏洞源于其有些地方会以不安全的方式呈现聊天频道的名称和描述允许攻击者通过在其中插入不安全的HTML来引发跨站脚本。
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
discourse discourse-chat < 0.9 -

II. Public POCs for CVE-2022-39279

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III. Intelligence Information for CVE-2022-39279

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Patches & Fixes for CVE-2022-39279 (1)

Vendor Advisories for CVE-2022-39279 (1)

IV. Related Vulnerabilities

Same product: discourse-chat
Same vendor: discourse
Same weakness: CWE-79

V. Comments for CVE-2022-39279

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