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CVE-2023-37906— Discourse vulnerable to DoS via post edit reason

Quick assessment

Affected
discourse discourse
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 存在安全漏洞，该漏洞源于恶意用户可以编辑主题中的帖子，并通过精心设计的编辑原因引发 DoS。

CVSS 4.3 · Medium EPSS 0.54% · P44
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I. Basic Information for CVE-2023-37906

Vulnerability Information
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Vulnerability Title
Discourse vulnerable to DoS via post edit reason
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is an open source discussion platform. Prior to version 3.0.6 of the `stable` branch and version 3.1.0.beta7 of the `beta` and `tests-passed` branches, a malicious user can edit a post in a topic and cause a DoS with a carefully crafted edit reason. The issue is patched in version 3.0.6 of the `stable` branch and version 3.1.0.beta7 of the `beta` and `tests-passed` branches. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
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 存在安全漏洞，该漏洞源于恶意用户可以编辑主题中的帖子，并通过精心设计的编辑原因引发 DoS。
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 >= 3.1.0.beta1, < 3.1.0.beta7 -

II. Public POCs for CVE-2023-37906

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III. Intelligence Information for CVE-2023-37906

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Patches & Fixes for CVE-2023-37906 (1)

Vendor Advisories for CVE-2023-37906 (1)

Same Patch Batch · discourse · 2023-07-28 · 6 CVEs total

CVE-2023-37467 6.8 MEDIUM Discourse CSP nonce reuse vulnerability for anonymous users
CVE-2023-38684 5.3 MEDIUM Discourse vulnerable to ossible DDoS due to unbounded limits in various controller actions
CVE-2023-38685 4.3 MEDIUM Discourse's restricted tag information visible to unauthenticated users
CVE-2023-38498 4.3 MEDIUM Discourse vulnerable to DoS via defer queue
CVE-2023-37904 2.6 LOW Discourse Race Condition in Accept Invite

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-770

V. Comments for CVE-2023-37906

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