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I. Basic Information for CVE-2021-47857
Vulnerability Information

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Vulnerability Title
Moodle 3.10.3 - 'label' Persistent Cross Site Scripting
Source: NVD (National Vulnerability Database)
Vulnerability Description
Moodle 3.10.3 contains a persistent cross-site scripting vulnerability in the calendar event subtitle field that allows attackers to inject malicious scripts. Attackers can craft a calendar event with malicious JavaScript in the subtitle track label to execute arbitrary code when users view the event.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Moodle 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Moodle是Moodle开源的一套免费的电子学习软件平台,也称课程管理系统、学习管理系统或虚拟学习环境。 Moodle 3.10.3版本存在跨站脚本漏洞,该漏洞源于日历事件副标题字段存在持久型跨站脚本,可能导致执行任意代码。
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
VendorProductAffected VersionsCPESubscribe
MoodleMoodle 3.10.3 -
II. Public POCs for CVE-2021-47857
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III. Intelligence Information for CVE-2021-47857
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IV. Related Vulnerabilities
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