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CVE-2021-4072— Cross-site Scripting (XSS) - Stored in elgg/elgg

Quick assessment

Affected
elgg elgg/elgg
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.

Elgg是一套开源社交网络引擎。该产品博客、文件共享、群组等功能。 elgg 存在跨站脚本漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

AI Predicted 5.4 Difficulty: Easy EPSS 0.70% · P50

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-4072

Vulnerability Information
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Vulnerability Title
Cross-site Scripting (XSS) - Stored in elgg/elgg
Source: CVE Program / CVE List V5
Vulnerability Description
elgg is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Source: CVE Program / CVE List V5
CVSS Information
N/A
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
Elgg 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elgg是一套开源社交网络引擎。该产品博客、文件共享、群组等功能。 elgg 存在跨站脚本漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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
elgg elgg/elgg unspecified ~ 3.3.24 -

II. Public POCs for CVE-2021-4072

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-4072

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Patches & Fixes for CVE-2021-4072 (1)

Vendor Advisories for CVE-2021-4072 (1)

IV. Related Vulnerabilities

Same product: elgg/elgg
Same vendor: elgg
Same weakness: CWE-79

V. Comments for CVE-2021-4072

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