What is CVE-2020-28947?

CVE-2020-28947 is a medium-severity vulnerability in Misp, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-19.

How severe is CVE-2020-28947?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Misp

CVE-2020-28947

In MISP 2.4.134, XSS exists in the template element index view because the id parameter is mishandled.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-11-19 · last modified 2026-06-22.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Misp — versions 2.4.134
Misp-Project Misp — versions 2.4.134

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/MISP/MISP/commit/626ca544ffb5604ea01bb291f69811668b6b5631 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-28947?: CVE-2020-28947 is a medium-severity vulnerability in Misp, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-19.
How severe is CVE-2020-28947?: Medium severity. CVSS v3 base score is 6.1 out of 10.