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CVE-2022-39232— Discourse vulnerable to incomplete quote causing a topic to crash in the browser

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 2.8.9之前版本、2.9.0.beta9之前版本存在安全漏洞，该漏洞源于在某些情况下，不完整的引用会产生 JavaScript 错误，这会导致浏览器中的当前页面崩溃。

CVSS 6.5 · Medium EPSS 1.00% · P60
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I. Basic Information for CVE-2022-39232

Vulnerability Information
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Vulnerability Title
Discourse vulnerable to incomplete quote causing a topic to crash in the browser
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is an open source discussion platform. Starting with version 2.9.0.beta5 and prior to version 2.9.0.beta10, an incomplete quote can generate a JavaScript error which will crash the current page in the browser in some cases. Version 2.9.0.beta10 added a fix and tests to ensure incomplete quotes won't break the app. As a workaround, the quote can be fixed via the rails console.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
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 2.8.9之前版本、2.9.0.beta9之前版本存在安全漏洞，该漏洞源于在某些情况下，不完整的引用会产生 JavaScript 错误，这会导致浏览器中的当前页面崩溃。
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 >= 2.9.0.beta5, < 2.9.0.beta10 -

II. Public POCs for CVE-2022-39232

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III. Intelligence Information for CVE-2022-39232

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Patches & Fixes for CVE-2022-39232 (2)

Vendor Advisories for CVE-2022-39232 (1)

Same Patch Batch · discourse · 2022-09-29 · 4 CVEs total

CVE-2022-36066 9.1 CRITICAL Discourse vulnerable to RCE via admins uploading maliciously zipped file
CVE-2022-36068 7.2 HIGH Discourse moderators can edit themes via the API
CVE-2022-39226 4.3 MEDIUM Discourse user profile location and website fields were not sufficiently length-limited

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-20

V. Comments for CVE-2022-39232

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