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CVE-2023-28112— Discourse's SSRF protection missing for some FastImage requests

CVSS 5.9 · Medium EPSS 0.28% · P52
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I. Basic Information for CVE-2023-28112

Vulnerability Information
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Vulnerability Title
Discourse's SSRF protection missing for some FastImage requests
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the `beta` and `tests-passed` branches, some user provided URLs were being passed to FastImage without SSRF protection. Insufficient protections could enable attackers to trigger outbound network connections from the Discourse server to private IP addresses. This affects any site running the `tests-passed` or `beta` branches versions 3.1.0.beta2 and prior. This issue is patched in version 3.1.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Discourse 代码问题漏洞
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存在代码问题漏洞，该漏洞源于没有进行跨站请求伪造保护。
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

VendorProductAffected VersionsCPESubscribe
discoursediscourse beta < 3.1.0.beta3 -

II. Public POCs for CVE-2023-28112

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III. Intelligence Information for CVE-2023-28112

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Same Patch Batch · discourse · 2023-03-17 · 6 CVEs total

CVE-2023-260406.5 MEDIUMDiscourse chat messages susceptible to Cross-site Scripting through chat excerpts
CVE-2023-281115.7 MEDIUMDiscourse vulnerable to SSRF protection bypass possible with IPv4-mapped IPv6 addresses
CVE-2023-281074.5 MEDIUMDiscourse vulnerable to multisite DoS by spamming backups
CVE-2023-251724.4 MEDIUMDiscourse vulnerable to Cross-site Scripting - user name displayed on post
CVE-2023-236224.3 MEDIUMDiscourse: Presence of read restricted topics may be leaked if tagged with a tag that is v

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-28112

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