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CVE-2025-67849— Moodle: moodle: cross-site scripting (xss) via improper sanitization of ai prompt responses

Quick assessment

Affected
CVE-2025-67849
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.

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存在安全漏洞，该漏洞源于对AI提示响应的清理不当，可能导致跨站脚本攻击、会话窃取或用户界面被操纵。

CVSS 7.3 · High EPSS 0.23% · P14

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

I. Basic Information for CVE-2025-67849

Vulnerability Information
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Vulnerability Title
Moodle: moodle: cross-site scripting (xss) via improper sanitization of ai prompt responses
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Moodle. This cross-site scripting (XSS) vulnerability, caused by improper sanitization of AI prompt responses, allows attackers to inject malicious HTML or script into web pages. When other users view these compromised pages, their sessions could be stolen, or the user interface could be manipulated.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Vulnerability Title
Moodle 安全漏洞
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存在安全漏洞，该漏洞源于对AI提示响应的清理不当，可能导致跨站脚本攻击、会话窃取或用户界面被操纵。
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)

II. Public POCs for CVE-2025-67849

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III. Intelligence Information for CVE-2025-67849

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Vendor Advisories for CVE-2025-67849 (1)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2025-67849

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