CVE-2020-13820 json
Extreme Management Center 8.4.1.24 allows unauthenticated reflected XSS via a parameter in a GET request.
published 2020-08-03 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-6035
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.2%
- EPSS 4.2% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Extreme Management Center 8.4.1.24 allows unauthenticated reflected XSS via a parameter in a GET request.
Exploit prediction
4.18% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Extreme Management Center 8.4.1.24 - Cross-Site Scripting nuclei detection template
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
-
documentation.extremenetworks.com
/release_notes/netsight/XMC_8.5.0_Release_Notes.pdf
release-notes, vendor-advisory
-
gtacknowledge.extremenetworks.com
third-party-advisory
-
gtacknowledge.extremenetworks.com
/articles/Solution/000051136
third-party-advisory
- medium.com /%400x00crash/xss-reflected-in-extreme-management-center-8-4-1-24-cve-2020-13820-c6febe951219
Sources
- CVE List CVE-2020-13820
- NVD CVE-2020-13820
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.