CVE-2021-39205— DOM-based XSS/Content Spoofing via Prototype Pollution
Quick assessment
Affected
jitsi jitsi-meet
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.
Jitsi Meet是是一组开源项目。使用户能够使用和部署具有最先进视频质量和功能的视频会议平台。 Jitsi Meet 2.0.6173之前的版本存在跨站脚本漏洞，该漏洞源于软件会将属性注入JSON对象中，而这些属性没有正确被转义。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-39205
Vulnerability Information
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Vulnerability Title
DOM-based XSS/Content Spoofing via Prototype Pollution
Source: CVE Program / CVE List V5
Vulnerability Description
Jitsi Meet is an open source video conferencing application. Versions prior to 2.0.6173 are vulnerable to client-side cross-site scripting via injecting properties into JSON objects that were not properly escaped. There are no known incidents related to this vulnerability being exploited in the wild. This issue is fixed in Jitsi Meet version 2.0.6173. There are no known workarounds aside from upgrading.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/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
Jitsi Meet 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jitsi Meet是是一组开源项目。使用户能够使用和部署具有最先进视频质量和功能的视频会议平台。 Jitsi Meet 2.0.6173之前的版本存在跨站脚本漏洞，该漏洞源于软件会将属性注入JSON对象中，而这些属性没有正确被转义。
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 |
|---|---|---|---|---|
| jitsi | jitsi-meet | < 2.0.6173 | - |
|
II. Public POCs for CVE-2021-39205
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2021-39205 (2)
-
https://github.com/jitsi/jitsi-meet/pull/9320 x_refsource_MISC
-
https://github.com/jitsi/jitsi-meet/pull/9404 x_refsource_MISC
Vendor Advisories for CVE-2021-39205 (1)
-
https://github.com/jitsi/jitsi-meet/security/advisories/GHSA-6582-8v9q-v3fg x_refsource_CONFIRM
Other References for CVE-2021-39205 (1)
-
https://hackerone.com/reports/1214493 x_refsource_MISC
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V. Comments for CVE-2021-39205
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