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CVE-2023-22454— Discourse vulnerable to Cross-site Scripting through pending post titles descriptions

CVSS 8.0 · High EPSS 0.29% · P53
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I. Basic Information for CVE-2023-22454

Vulnerability Information
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Vulnerability Title
Discourse vulnerable to Cross-site Scripting through pending post titles descriptions
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, pending post titles can be used for cross-site scripting attacks. Pending posts can be created by unprivileged users when a category has the "require moderator approval of all new topics" setting set. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. A patch is available in versions 2.8.14 and 3.0.0.beta16.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
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
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存在跨站脚本漏洞，该漏洞源于其挂起的文章标题允许攻击者实现跨站脚本。当一个类别具有require moderator approval of all new topics设置时，非特权用户可以创建待处理的帖子。在修改或禁用了Discourse的默认内容安全策略的站点上，此漏洞可能导致完整的跨站脚本。
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

VendorProductAffected VersionsCPESubscribe
discoursediscourse < 2.8.14 -

II. Public POCs for CVE-2023-22454

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III. Intelligence Information for CVE-2023-22454

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Same Patch Batch · discourse · 2023-01-05 · 8 CVEs total

CVE-2023-224556.8 MEDIUMDiscourse vulnerable to Cross-site Scripting through tag descriptions
CVE-2022-235486.5 MEDIUMDiscourse 跨站脚本漏洞
CVE-2022-461775.7 MEDIUMDiscourse password reset link can lead to in account takeover if user changes to a new ema
CVE-2022-235495.7 MEDIUMDiscourse vulnerable to bypass of post max_length using HTML comments
CVE-2022-235465.5 MEDIUMDiscourse vulnerable to private topic leak via email#send_digest
CVE-2023-224535.3 MEDIUMDiscourse vulnerable to exposure of user post counts per topic to unauthorized users
CVE-2022-461683.5 LOWGroup SMTP user emails are exposed in CC email header

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-22454

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