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CVE-2024-39320— Discourse allows iframe injection though default site setting

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Discourse开源的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。攻击者利用该漏洞从任何域注入iframe，从而绕过由allowed_iframes设置强制执行的限制。

CVSS 6.1 · Medium EPSS 0.34% · P27
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I. Basic Information for CVE-2024-39320

Vulnerability Information
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Vulnerability Title
Discourse allows iframe injection though default site setting
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is an open source discussion platform. Prior to 3.2.5 and 3.3.0.beta5, the vulnerability allows an attacker to inject iframes from any domain, bypassing the intended restrictions enforced by the allowed_iframes setting. This vulnerability is fixed in 3.2.5 and 3.3.0.beta5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Discourse 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discourse是Discourse开源的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。攻击者利用该漏洞从任何域注入iframe，从而绕过由allowed_iframes设置强制执行的限制。
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 < 3.2.5 -

II. Public POCs for CVE-2024-39320

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III. Intelligence Information for CVE-2024-39320

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Patches & Fixes for CVE-2024-39320 (2)

Vendor Advisories for CVE-2024-39320 (1)

Same Patch Batch · discourse · 2024-07-30 · 3 CVEs total

CVE-2024-37165 6.3 MEDIUM Discourse has an XSS via Onebox system
CVE-2024-37299 4.9 MEDIUM Discourse vulnerable to DoS via Tag Group

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-74

V. Comments for CVE-2024-39320

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