What is CVE-2020-28487?

CVE-2020-28487 is a medium-severity vulnerability in Visjs Vis-Timeline, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2021-01-22.

How severe is CVE-2020-28487?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Visjs Vis-Timeline

CVE-2020-28487

This affects the package vis-timeline before 7.4.4. An attacker with the ability to control the items of a Timeline element can inject additional script code into the generated application.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-01-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L.

EPSS exploit prediction

EPSS: 0.014 (72.3th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Visjs Vis-Timeline
Vis-Timeline — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

snyk.io/vuln/SNYK-JS-VISTIMELINE-1063500 (Exploit, Patch, Third Party Advisory)
snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1063501 (Exploit, Patch, Third Party Advisory)
snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBVISJS-1063502 (Exploit, Patch, Third Party Advisory)
github.com/visjs/vis-timeline/issues/838 (Third Party Advisory, Issue Tracking)
github.com/visjs/vis-timeline/pull/840 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-28487?: CVE-2020-28487 is a medium-severity vulnerability in Visjs Vis-Timeline, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2021-01-22.
How severe is CVE-2020-28487?: Medium severity. CVSS v3 base score is 6.8 out of 10.