CVE-2023-45131— Unauthenticated access to new private chat messages in Discourse
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I. Basic Information for CVE-2023-45131
Vulnerability Information
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Vulnerability Title
Unauthenticated access to new private chat messages in Discourse
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an open source platform for community discussion. New chat messages can be read by making an unauthenticated POST request to MessageBus. This issue is patched in the 3.1.1 stable and 3.2.0.beta2 versions of Discourse. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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存在信息泄露漏洞，该漏洞源于允许攻击者通过向MessageBus发出POST请求来读取新的聊天消息。受影响的产品和版本：stable 3.1.0至3.1.1版本，beta 3.1.0.beta6至3.2.0.beta2版本，tests-passed 3.1.0.beta6至3.2.0.beta2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-2023-45131
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/ibrahmsql/CVE-2023-45131 | POC Details |
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No public POC found.
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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-2023-44388 | 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-2023-45147 | 4.9 MEDIUM | Arbitrary keys can be added to a topic's custom fields by any user 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
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V. Comments for CVE-2023-45131
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