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CVE-2024-47773— Anonymous cache poisoning via XHR requests in Discourse

Quick assessment

Affected
discourse discourse
Exploitation
Public or AI PoC available; prioritize validation
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。攻击者可以发出多个 XHR 请求，直到缓存被一个没有任何预加载数据的响应污染。

CVSS 8.2 · High EPSS 1.66% · P76

Public Exploits 1

ExploitDB · 1 EDB-52358 [webapps]
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I. Basic Information for CVE-2024-47773

Vulnerability Information
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Vulnerability Title
Anonymous cache poisoning via XHR requests in Discourse
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is an open source platform for community discussion. An attacker can make several XHR requests until the cache is poisoned with a response without any preloaded data. This issue only affects anonymous visitors of the site. This problem has been patched in the latest version of Discourse. Users are advised to upgrade. Users unable to upgrade should disable anonymous cache by setting the `DISCOURSE_DISABLE_ANON_CACHE` environment variable to a non-empty value.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
资源在另一范围的外部可控制索引
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。攻击者可以发出多个 XHR 请求，直到缓存被一个没有任何预加载数据的响应污染。
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 stable: < 3.3.2 -

II. Public POCs for CVE-2024-47773

# POC Description Source Link Shenlong Link
1 None https://github.com/ibrahmsql/CVE-2024-47773 POC Details
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III. Intelligence Information for CVE-2024-47773

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IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-610

V. Comments for CVE-2024-47773

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