CVE-2020-13820
CVE-2020-13820 is a medium-severity vulnerability in Extremenetworks Extreme Management Center with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 3% (88th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Extremenetworks Extreme Management Center
- Published:
- Last modified:
Description
Extreme Management Center 8.4.1.24 allows unauthenticated reflected XSS via a parameter in a GET request.
Frequently asked questions
- What is CVE-2020-13820?
- Extreme Management Center 8.4.1.24 allows unauthenticated reflected XSS via a parameter in a GET request.
- How severe is CVE-2020-13820?
- CVE-2020-13820 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-13820 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-13820?
- CVE-2020-13820 affects Extremenetworks Extreme Management Center. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-13820?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-13820 published?
- CVE-2020-13820 was published on 2020-08-03 and last updated on 2026-06-17.
References
- https://documentation.extremenetworks.com/release_notes/netsight/XMC_8.5.0_Release_Notes.pdf
- https://gtacknowledge.extremenetworks.com
- https://gtacknowledge.extremenetworks.com/articles/Solution/000051136
- https://medium.com/%400x00crash/xss-reflected-in-extreme-management-center-8-4-1-24-cve-2020-13820-c6febe951219
Affected products (1)
- cpe:2.3:a:extremenetworks:extreme_management_center:8.4.1.24:*:*:*:*:*:*:*
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