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Fencer Vulns
medium 6.8

CVE-2020-28487 json

Cross-site Scripting (XSS)

published 2021-01-22 5 y ago modified 2026-06-17 4 mo ago also GHSA-9mrv-456v-pf22 , EUVD-2021-0806

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

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.

Patch / fix

  • npm vis-timeline 7.4.4
  • n/a vis-timeline 7.4.4

Exploit prediction

1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • snyk.io https://snyk.io/vuln/SNYK-JS-VISTIMELINE-1063500 referenced PoC, tagged "exploit" by a source, unverified
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1063501 referenced PoC, tagged "exploit" by a source, unverified
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBVISJS-1063502 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L/E:P/RL:O/RC:C
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P
GitHub 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L

Affected packages

ecosystem package affected fixed in
npm vis-timeline
<7.4.4
7.4.4

Affected products

  • n/a vis-timeline

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

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.