CVE-2020-21987

MEDIUM

HomeAutomation 3.3.2 - Stored Cross-Site Scripting via Input Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-21987. PoCs published by LiquidWorm.

AI-analyzed exploit summary This exploit demonstrates stored and reflected XSS vulnerabilities in HomeAutomation 3.3.2. The PoC includes a reflected XSS via a crafted URL and a stored XSS via a malicious macro comment field.

Description

HomeAutomation 3.3.2 is affected by persistent Cross Site Scripting (XSS). XSS vulnerabilities occur when input passed via several parameters to several scripts is not properly sanitized before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session.

Exploits (1)

exploitdb WORKING POC
by LiquidWorm · textwebappshardware
https://www.exploit-db.com/exploits/47806

This exploit demonstrates stored and reflected XSS vulnerabilities in HomeAutomation 3.3.2. The PoC includes a reflected XSS via a crafted URL and a stored XSS via a malicious macro comment field.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: HomeAutomation v3.3.2
Auth required
Prerequisites: Access to the application · Valid session cookies for stored XSS
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5556.php
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/47806

Scores

CVSS v3 6.1
EPSS 0.0091
EPSS Percentile 55.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
homeautomation_project/homeautomation 3.3.2
Published Apr 27, 2021
Tracked Since Feb 18, 2026