CVE-2021-3866: Cross-site Scripting (XSS) - Stored in zulip/zulip

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I. Basic Information for CVE-2021-3866

Vulnerability Information

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Vulnerability Title

Cross-site Scripting (XSS) - Stored in zulip/zulip

Source: NVD (National Vulnerability Database)

Vulnerability Description

Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip more than and including 44f935695d452cc3fb16845a0c6af710438b153d and prior to 3eb2791c3e9695f7d37ffe84e0c2184fae665cb6.

Source: NVD (National Vulnerability Database)

CVSS Information

N/A

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

Zulip 跨站脚本漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Zulip是Zulip团队的一款功能强大的开源群聊应用程序。用于将实时聊天的即时性与线程对话的生产力优势相结合。 zulip 存在跨站脚本漏洞，该漏洞源于 zulip/zulip 存在跨站脚本漏洞。

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
zulip	zulip/zulip	44f935695d452cc3fb16845a0c6af710438b153d ~ unspecified	-

II. Public POCs for CVE-2021-3866

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2021-3866

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https://blog.zulip.com/2022/01/19/cve-2021-3866/x_refsource_MISC
https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6x_refsource_MISC
https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2x_refsource_CONFIRM
https://nvd.nist.gov/vuln/detail/CVE-2021-3866

IV. Related Vulnerabilities

Same product: zulip/zulip

CVE-2021-3967
Improper Access Control in zulip/zulip

Same vendor: zulip

Same weakness: CWE-79

V. Comments for CVE-2021-3866

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I. Basic Information for CVE-2021-3866

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2021-3866

III. Intelligence Information for CVE-2021-3866

IV. Related Vulnerabilities

V. Comments for CVE-2021-3866

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