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CVE-2021-26544— Apache Livy (Incubating) is vulnerable to cross site scripting

Quick assessment

Affected
Apache Software Foundation Apache Livy (Incubating)
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.

Apache Livy是美国Apache公司的一个应用服务器。提供支持从Web、移动应用程序以编程方式，容错，多租户提交Spark作业。 Livy server version 0.7.0-incubating 存在跨站脚本漏洞， 攻击者可以利用该漏洞访问其他用户的会话日志和结果，并使用他们的权限运行作业。

AI Predicted 7.5 Difficulty: Easy EPSS 2.82% · P85

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-26544

Vulnerability Information
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Vulnerability Title
Apache Livy (Incubating) is vulnerable to cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
Livy server version 0.7.0-incubating (only) is vulnerable to a cross site scripting issue in the session name. A malicious user could use this flaw to access logs and results of other users' sessions and run jobs with their privileges. This issue is fixed in Livy 0.7.1-incubating.
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
Apache Livy 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Livy是美国Apache公司的一个应用服务器。提供支持从Web、移动应用程序以编程方式，容错，多租户提交Spark作业。 Livy server version 0.7.0-incubating 存在跨站脚本漏洞， 攻击者可以利用该漏洞访问其他用户的会话日志和结果，并使用他们的权限运行作业。
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
Apache Software Foundation Apache Livy (Incubating) Apache Livy (Incubating) 0.7.0-incubating -

II. Public POCs for CVE-2021-26544

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III. Intelligence Information for CVE-2021-26544

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Patches & Fixes for CVE-2021-26544 (1)

Mailing List Discussions for CVE-2021-26544 (2)

IV. Related Vulnerabilities

Same vendor: Apache Software Foundation
Same weakness: CWE-79

V. Comments for CVE-2021-26544

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