CVE-2020-21987 json
HomeAutomation 3.3.2 is affected by persistent Cross Site Scripting (XSS).
published 2021-04-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-14753
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
0.91% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- exploit-db.com https://www.exploit-db.com/exploits/47806 referenced PoC, tagged "exploit" by a source, unverified
- zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5556.php referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
exploit-db.com
/exploits/47806
exploit, third-party-advisory, vdb-entry
-
zeroscience.mk
/en/vulnerabilities/ZSL-2019-5556.php
exploit, third-party-advisory
Sources
- CVE List CVE-2020-21987
- NVD CVE-2020-21987
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.