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CVE-2023-25172— Discourse vulnerable to Cross-site Scripting - user name displayed on post

CVSS 4.4 · Medium EPSS 0.77% · P74
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I. Basic Information for CVE-2023-25172

Vulnerability Information
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Vulnerability Title
Discourse vulnerable to Cross-site Scripting - user name displayed on post
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an open-source discussion platform. Prior to version 3.0.1 of the `stable` branch and version 3.1.0.beta2 of the `beta` and `tests-passed` branches, a maliciously crafted URL can be included in a user's full name field to to carry out cross-site scripting attacks on sites with a disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. The vulnerability is patched in version 3.0.1 of the `stable` branch and version 3.1.0.beta2 of the `beta` and `tests-passed` branches. As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/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
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。攻击者利用该漏洞执行跨站脚本攻击。
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

VendorProductAffected VersionsCPESubscribe
discoursediscourse stable < 3.0.1 -

II. Public POCs for CVE-2023-25172

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III. Intelligence Information for CVE-2023-25172

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Same Patch Batch · discourse · 2023-03-17 · 6 CVEs total

CVE-2023-260406.5 MEDIUMDiscourse chat messages susceptible to Cross-site Scripting through chat excerpts
CVE-2023-281125.9 MEDIUMDiscourse's SSRF protection missing for some FastImage requests
CVE-2023-281115.7 MEDIUMDiscourse vulnerable to SSRF protection bypass possible with IPv4-mapped IPv6 addresses
CVE-2023-281074.5 MEDIUMDiscourse vulnerable to multisite DoS by spamming backups
CVE-2023-236224.3 MEDIUMDiscourse: Presence of read restricted topics may be leaked if tagged with a tag that is v

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-25172

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