CVE-2021-27910 (GCVE-0-2021-27910)

Vulnerability from cvelistv5 – Published: 2021-08-30 15:55 – Updated: 2024-09-17 01:25
VLAI
Title
Stored XSS vulnerability on Bounce Management Callback
Summary
Insufficient sanitization / filtering allows for arbitrary JavaScript Injection in Mautic using the bounce management callback function. The values submitted in the "error" and "error_related_to" parameters of the POST request of the bounce management callback will be permanently stored and executed once the details page of an affected lead is opened by a Mautic user. An attacker with access to the bounce management callback function (identified with the Mailjet webhook, but it is assumed this will work uniformly across all kinds of webhooks) can inject arbitrary JavaScript Code into the "error" and "error_related_to" parameters of the POST request (POST /mailer/<product / webhook>/callback). It is noted that there is no authentication needed to access this function. The JavaScript Code is stored permanently in the web application and executed every time an authenticated user views the details page of a single contact / lead in Mautic. This means, arbitrary code can be executed to, e.g., steal or tamper with information.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
CWE
  • CWE-79 - Cross-site Scripting (XSS)
Assigner
Mautic CNA
References
Impacted products
Vendor Product Version
Mautic Mautic Affected: unspecified , < 3.3.4 (custom)
Affected: unspecified , < 4.0.0 (custom)
Create a notification for this product.
Date Public
2021-08-30 00:00
Credits
Fixed by Zdeno Kuzmany, Webmecanik
Show details on NVD website
To clipboard 

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