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CVE-2022-21677— Group advanced search option may leak group and group's members visibility

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 中存在信息泄露漏洞，该漏洞源于组高级搜索选项不尊重组的可见性和成员的可见性级别。因此，具有受限可见性或成员可见性的组可以通过具有正确搜索选项的搜索来显示。

CVSS 4.3 · Medium EPSS 1.17% · P66

Possible ATT&CK Techniques 1 AI

T1087 · Account Discovery
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I. Basic Information for CVE-2022-21677

Vulnerability Information
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Vulnerability Title
Group advanced search option may leak group and group's members visibility
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is an open source discussion platform. Discourse groups can be configured with varying visibility levels for the group as well as the group members. By default, a newly created group has its visibility set to public and the group's members visibility set to public as well. However, a group's visibility and the group's members visibility can be configured such that it is restricted to logged on users, members of the group or staff users. A vulnerability has been discovered in versions prior to 2.7.13 and 2.8.0.beta11 where the group advanced search option does not respect the group's visibility and members visibility level. As such, a group with restricted visibility or members visibility can be revealed through search with the right search option. This issue is patched in `stable` version 2.7.13, `beta` version 2.8.0.beta11, and `tests-passed` version 2.8.0.beta11 versions of Discourse. There are no workarounds aside from upgrading.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 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 中存在信息泄露漏洞，该漏洞源于组高级搜索选项不尊重组的可见性和成员的可见性级别。因此，具有受限可见性或成员可见性的组可以通过具有正确搜索选项的搜索来显示。
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 < 2.7.13 -

II. Public POCs for CVE-2022-21677

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III. Intelligence Information for CVE-2022-21677

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Patches & Fixes for CVE-2022-21677 (1)

Vendor Advisories for CVE-2022-21677 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2022-21677

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