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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTg2cHYtOTVtai03dzVm

Stored XSS vulnerability on Bounce Management Callback

Impact

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.

Patches

Upgrade to 3.3.4 or 4.0.0

Workarounds

No

References

https://github.com/mautic/mautic/releases/tag/3.3.4
https://github.com/mautic/mautic/releases/tag/4.0.0

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-86pv-95mj-7w5f
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTg2cHYtOTVtai03dzVm
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 3 years ago
Updated: 12 months ago


CVSS Score: 8.2
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N

EPSS Percentage: 0.00062
EPSS Percentile: 0.28523

Identifiers: GHSA-86pv-95mj-7w5f, CVE-2021-27910
References: Repository: https://github.com/mautic/mautic
Blast Radius: 3.9

Affected Packages

packagist:mautic/core
Dependent packages: 2
Dependent repositories: 3
Downloads: 2,009 total
Affected Version Ranges: >= 4.0.0-alpha1, < 4.0.0, < 3.3.4
Fixed in: 4.0.0, 3.3.4
All affected versions: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.3.0, 1.3.1, 1.4.0, 1.4.1, 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.3.0, 2.4.0, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.7.0, 2.7.1, 2.8.0, 2.8.1, 2.8.2, 2.9.0, 2.9.1, 2.9.2, 2.10.0, 2.10.1, 2.11.0, 2.12.0, 2.12.1, 2.12.2, 2.13.0, 2.13.1, 2.14.0, 2.14.1, 2.14.2, 2.15.0, 2.15.1, 2.15.2, 2.15.3, 2.16.0, 2.16.1, 2.16.2, 2.16.3, 2.16.4, 2.16.5, 3.0.0, 3.0.1, 3.0.2, 3.1.0, 3.1.1, 3.1.2, 3.2.0, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 4.0.0-alpha1, 4.0.0-beta, 4.0.0-rc
All unaffected versions: 3.3.4, 3.3.5, 4.0.0, 4.0.1, 4.0.2, 4.1.0, 4.1.1, 4.1.2, 4.2.0, 4.2.1, 4.2.2, 4.3.0, 4.3.1, 4.4.0, 4.4.1, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.4.6, 4.4.7, 4.4.8, 4.4.9, 4.4.10, 4.4.11, 4.4.12, 4.4.13, 5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.1.0, 5.1.1, 5.2.0, 5.2.1