CVE-2021-27911 - CVE House
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Status published High CVE-2021-27911

XSS vulnerability on contacts view

Vulnerability Description

Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack through the contact's first or last name and triggered when viewing a contact's details page then clicking on the action drop down and hovering over the Campaigns button. Contact first and last name can be populated from different sources such as UI, API, 3rd party syncing, forms, etc.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Reported by Hoang Nguyen https://github.com/MatisAct, Fixed by Rohit Pavaskar https://github.com/rohitp19

Affected Vendor

Affected Software

Mautic
Vulnerable Versions:
unspecified

Timeline

Official Publish: August 30th, 2021
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Weaknesses (CWE)