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CVE-2021-32718— Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in RabbitMQ management UI

Quick assessment

Affected
rabbitmq rabbitmq-server
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.

Pivotal Software RabbitMQ是美国Pivotal Software公司的一套实现了高级消息队列协议（AMQP）的开源消息代理软件。 RabbitMQ 3.8.17之前版本存在跨站脚本漏洞，该漏洞源于当通过管理 UI 添加新用户时，其名称会在未进行适当script标记清理的确认消息中呈现。

CVSS 3.1 · Low EPSS 1.43% · P72

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services
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I. Basic Information for CVE-2021-32718

Vulnerability Information
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Vulnerability Title
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in RabbitMQ management UI
Source: CVE Program / CVE List V5
Vulnerability Description
RabbitMQ is a multi-protocol messaging broker. In rabbitmq-server prior to version 3.8.17, a new user being added via management UI could lead to the user's bane being rendered in a confirmation message without proper `<script>` tag sanitization, potentially allowing for JavaScript code execution in the context of the page. In order for this to occur, the user must be signed in and have elevated permissions (other user management). The vulnerability is patched in RabbitMQ 3.8.17. As a workaround, disable `rabbitmq_management` plugin and use CLI tools for management operations and Prometheus and Grafana for metrics and monitoring.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
RabbitMQ跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pivotal Software RabbitMQ是美国Pivotal Software公司的一套实现了高级消息队列协议（AMQP）的开源消息代理软件。 RabbitMQ 3.8.17之前版本存在跨站脚本漏洞，该漏洞源于当通过管理 UI 添加新用户时，其名称会在未进行适当script标记清理的确认消息中呈现。
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
rabbitmq rabbitmq-server < 3.8.17 -

II. Public POCs for CVE-2021-32718

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III. Intelligence Information for CVE-2021-32718

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Patches & Fixes for CVE-2021-32718 (1)

Vendor Advisories for CVE-2021-32718 (1)

Mailing List Discussions for CVE-2021-32718 (1)

IV. Related Vulnerabilities

Same product: rabbitmq-server
Same vendor: rabbitmq
Same weakness: CWE-80

V. Comments for CVE-2021-32718

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