CVE-2021-38680 json
Reflected XSS in Kazoo Server
published 2021-12-29 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25119
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running Kazoo Server. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of Kazoo Server: Kazoo Server 4.11.20 and later
Patch / fix
- Linn Products Limited Kazoo Server 4.11.20
Exploit prediction
0.71% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
| 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 |
Affected products
- Linn Products Limited Kazoo Server
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
qnap.com
/en/security-advisory/qsa-21-54
vendor-advisory
Sources
- CVE List CVE-2021-38680
- NVD CVE-2021-38680
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