CVE-2023-23620— Discourse restricted tag routes leak topic information
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I. Basic Information for CVE-2023-23620
Vulnerability Information
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Vulnerability Title
Discourse restricted tag routes leak topic information
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, the contents of latest/top routes for restricted tags can be accessed by unauthorized users. This issue is patched in version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches. There are no known workarounds.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 3.0.1之前版本（稳定版）、3.1.0.beta2之前版本（测试版和测试通过版）存在信息泄露漏洞。攻击者利用该漏洞可以访问受限标签的最新/顶级路由的内容。
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-2023-23620
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Same Patch Batch · discourse · 2023-01-27 · 5 CVEs total
| CVE-2023-23621 | 8.6 HIGH | Discourse vulnerable to ReDoS in user agent parsing |
| CVE-2023-23624 | 4.3 MEDIUM | Discourse's exclude_tags param could leak which topics had a specific hidden tag |
| CVE-2023-22740 | 4.3 MEDIUM | Discourse vulnerable to Allocation of Resources Without Limits via Chat drafts |
| CVE-2023-23616 | 3.5 LOW | Discourse membership requests lack character limit |
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
- CVE-2026-42333
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-2023-23620
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