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CVE-2023-47121— Discourse SSRF vulnerability in Embedding

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 3.1.3 版本之前存在安全漏洞，该漏洞源于 embedding 功能很容易受到服务器端请求伪造的影响。

CVSS 3.4 · Low EPSS 0.69% · P52

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-47121

Vulnerability Information
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Vulnerability Title
Discourse SSRF vulnerability in Embedding
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is an open source platform for community discussion. Prior to version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches, the embedding feature is susceptible to server side request forgery. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. As a workaround, disable the Embedding feature.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
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 3.1.3 版本之前存在安全漏洞，该漏洞源于 embedding 功能很容易受到服务器端请求伪造的影响。
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 < 3.1.3 -

II. Public POCs for CVE-2023-47121

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III. Intelligence Information for CVE-2023-47121

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Patches & Fixes for CVE-2023-47121 (2)

Vendor Advisories for CVE-2023-47121 (1)

Same Patch Batch · discourse · 2023-11-10 · 6 CVEs total

CVE-2023-47120 7.5 HIGH Discourse DoS through Onebox favicon URL
CVE-2023-47119 5.3 MEDIUM HTML injection in oneboxed links
CVE-2023-46130 4.3 MEDIUM Bypassing height value allowed in some theme components
CVE-2023-45806 4.3 MEDIUM Discourse vulnerable to DoS via Regexp Injection in Full Name
CVE-2023-45816 3.3 LOW Unread bookmark reminder notifications that the user cannot access can be seen

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-918

V. Comments for CVE-2023-47121

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