CVE-2021-44791— Reflected XSS on certain HTTP endpoints
Quick assessment
Affected
Apache Software Foundation Apache Druid
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 Druid是美国阿帕奇（Apache）基金会的一款使用Java语言编写的、面向列的开源分布式数据库。 Apache Druid存在跨站脚本漏洞，该漏洞源于未充分清理用户提供的数据。远程攻击者利用该漏洞诱骗受害者跟踪特制链接，并在易受攻击的用户浏览器中执行任意 HTML 和脚本代码。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2021-44791
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Reflected XSS on certain HTTP endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
In Apache Druid 0.22.1 and earlier, certain specially-crafted links result in unescaped URL parameters being sent back in HTML responses. This makes it possible to execute reflected XSS attacks.
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 Druid 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Druid是美国阿帕奇（Apache）基金会的一款使用Java语言编写的、面向列的开源分布式数据库。 Apache Druid存在跨站脚本漏洞，该漏洞源于未充分清理用户提供的数据。远程攻击者利用该漏洞诱骗受害者跟踪特制链接，并在易受攻击的用户浏览器中执行任意 HTML 和脚本代码。
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 Druid | Apache Druid ~ 0.22.1 | - |
|
II. Public POCs for CVE-2021-44791
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-44791
请登录查看更多情报信息。
Mailing List Discussions for CVE-2021-44791 (1)
-
https://lists.apache.org/thread/lh2kcl4j45q7xj4w6rqf6kwf0mvyp2o6 x_refsource_MISC
IV. Related Vulnerabilities
Same product: Apache Druid
-
CVE-2026-23906
Apache Druid: Authentication Bypass via LDAP Anonymous Bind -
CVE-2025-59390
Apache Druid: Kerberos authenticaton chooses a cryptographic -
CVE-2025-27888
Apache Druid: Server-Side Request Forgery and Cross-Site Scr -
CVE-2024-45537
Apache Druid: Users can provide MySQL JDBC properties not on -
CVE-2024-45384
Apache Druid: Padding oracle in druid-pac4j extension that a
Same vendor: Apache Software Foundation
-
CVE-2026-92120
Apache Allura: Oauth1 Replay Attack -
CVE-2026-92119
Apache Allura: REST API Mass Assignment -
CVE-2026-92116
Apache Allura: OAuth1 missing callback validation -
CVE-2026-85499
Apache SkyWalking BanyanDB: Canopy does not enforce readonly -
CVE-2026-103636
Apache DataSketches: datasketches-cpp: Out-of-bounds read in
Same weakness: CWE-79
-
CVE-2026-108487
WordPress Books Gallery plugin <= 4.8.4 - Cross Site Scripti -
CVE-2026-105881
WordPress User Registration plugin <= 5.2.8 - Cross Site Scr -
CVE-2026-109697
WordPress SureCart plugin <= 4.9.4 - Cross Site Scripting (X -
CVE-2026-96535
Cross-Site Scripting in the YouMind web application -
CVE-2026-109691
WordPress Prime Slider – Addons For Elementor plugin <= 4.7.
V. Comments for CVE-2021-44791
No comments yet