UpHeron
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Servers and applications

CVE-2021-27912

XSS vulnerability on asset view

Severity
Medium 5.4
Published
30 Aug 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.3.4
Also known as
GHSA-rh5w-82wh-jhr8
Sources
NVD, Project advisories (GitHub)

Description

Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack when viewing Mautic assets by utilizing inline JS in the title and adding a broken image URL as a remote asset. This can only be leveraged by an authenticated user with permission to create or edit assets.

Affected software

SoftwareAffected versions
MauticServers and applications · cpe:a:acquia:mautic
  • Every version before 3.3.4
  • Version 4.0.0-alpha1
  • Version 4.0.0-beta
  • Version 4.0.0-rc
MauticServers and applications · github:mautic/mautic
  • Every version before 3.3.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-27912
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-27912
  • GitHub Advisory Database https://github.com/advisories/GHSA-rh5w-82wh-jhr8
  • github.com https://github.com/mautic/mautic/security/advisories/GHSA-rh5w-82wh-jhr8