CVE-2023-45147— Arbitrary keys can be added to a topic's custom fields by any user in Discourse
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I. Basic Information for CVE-2023-45147
Vulnerability Information
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Vulnerability Title
Arbitrary keys can be added to a topic's custom fields by any user in Discourse
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an open source community platform. In affected versions any user can create a topic and add arbitrary custom fields to a topic. The severity of this vulnerability depends on what plugins are installed and how the plugins uses topic custom fields. For a default Discourse installation with the default plugins, this vulnerability has no impact. The problem has been patched in the latest version of Discourse. Users are advised to update to version 3.1.1 if they are on the stable branch or 3.2.0.beta2 if they are on the beta branch. Users unable to upgrade should disable any plugins that access topic custom fields.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Discourse 信息泄露漏洞
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存在信息泄露漏洞，该漏洞源于允许任何用户创建主题并向主题添加任意自定义字段。受影响的产品和版本：Discourse stable 3.1.1及之前版本， beta 3.2.0.beta2及之前版本，tests-passed 3.2.0.beta2及之前版本。
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
II. Public POCs for CVE-2023-45147
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|---|
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Same Patch Batch · discourse · 2023-10-16 · 7 CVEs total
| CVE-2023-43658 | 8.0 HIGH | Improper escaping of user input in discourse-calendar |
| CVE-2023-43659 | 8.0 HIGH | Cross-site Scripting via email preview when CSP disabled in Discourse |
| CVE-2023-45131 | 7.5 HIGH | Unauthenticated access to new private chat messages in Discourse |
| CVE-2023-44388 | 7.5 HIGH | Malicious requests can fill up the log files resulting in a deinal of service in Discourse |
| CVE-2023-44391 | 5.3 MEDIUM | Prevent unauthorized access to summary details in Discourse |
| CVE-2023-43814 | 3.7 LOW | Exposure of poll options and votes to unauthorized users in Discourse |
IV. Related Vulnerabilities
Same product: discourse
- CVE-2026-34947
Discourse: Staged user custom fields are exposed on public i - CVE-2026-27481
Discourse: Hidden tag visibility bypass on tag routes - CVE-2026-33415
Discourse: Improper Access Control in discourse-ai Allows Un - CVE-2026-33300
Discourse: Hidden group names and access metadata are expose - CVE-2026-33185
Discourse: Group SMTP test endpoint susceptible to SSRF
Same vendor: discourse
- CVE-2026-34947
Discourse: Staged user custom fields are exposed on public i - CVE-2026-27481
Discourse: Hidden tag visibility bypass on tag routes - CVE-2026-33415
Discourse: Improper Access Control in discourse-ai Allows Un - CVE-2026-33300
Discourse: Hidden group names and access metadata are expose - CVE-2026-33185
Discourse: Group SMTP test endpoint susceptible to SSRF
Same weakness: CWE-200
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quarkus-openapi-generator has overly broad path-parameter ma - CVE-2026-8198
Activity Logs, User Activity Tracking, Multisite Activity Lo - CVE-2026-42456
AnythingLLM: Cross-User TTS Audio Disclosure via Chat ID (ID - CVE-2026-41520
Cillium exposes sensitive information included in the cilium - CVE-2026-25199
Apache CloudStack: Proxmox Extension Allows Unauthorized Cro
V. Comments for CVE-2023-45147
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