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CVE-2022-39378— Displaying user badges can leak topic titles to users that have no access to the topic

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存在安全漏洞。攻击者利用该漏洞导致敏感信息泄露。

CVSS 5.3 · Medium EPSS 0.52% · P43

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2022-39378

Vulnerability Information
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Vulnerability Title
Displaying user badges can leak topic titles to users that have no access to the topic
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is a platform for community discussion. Under certain conditions, a user badge may have been awarded based on a user's activity in a topic with restricted access. Before this vulnerability was disclosed, the topic title of the topic associated with the user badge may be viewed by any user. If there are sensitive information in the topic title, it will therefore have been exposed. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. There are currently no known workarounds available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
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存在安全漏洞。攻击者利用该漏洞导致敏感信息泄露。
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 <= 2.8.9 -

II. Public POCs for CVE-2022-39378

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III. Intelligence Information for CVE-2022-39378

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Vendor Advisories for CVE-2022-39378 (1)

Same Patch Batch · discourse · 2022-11-02 · 3 CVEs total

CVE-2022-39356 8.9 HIGH Discourse user account takeover via email and invite link
CVE-2022-39241 7.6 HIGH Possible Server-Side Request Forgery (SSRF) in webhooks

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-200

V. Comments for CVE-2022-39378

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