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I. Basic Information for CVE-2022-23549
Vulnerability Information

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Vulnerability Title
Discourse vulnerable to bypass of post max_length using HTML comments
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 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Discourse 安全漏洞
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 2.8.14之前版本(stable)、2.9.0.beta16之前版本(beta和tests-passed)存在安全漏洞。攻击者利用该漏洞可以通过包含不计入字符限制的html注释来创建原始正文长于“max_length”站点设置的帖子。
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 ~ 2.8.14 -
II. Public POCs for CVE-2022-23549
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III. Intelligence Information for CVE-2022-23549
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IV. Related Vulnerabilities
V. Comments for CVE-2022-23549

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