UpHeron
All vulnerabilities

Servers and applications

CVE-2020-8294

A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in markdown format.

Severity
Medium 5.4
Published
3 Feb 2021
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
18.0.11, 19.0.5, 20.0.2
Sources
NVD

Affected software

SoftwareAffected versions
NextcloudServers and applications · cpe:a:nextcloud:nextcloud_server
  • Every version before 18.0.11
  • From 19.0.0 before 19.0.5
  • From 20.0.0 before 20.0.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-8294
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-8294