XSS vulnerability on contacts view
Impact
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.
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:
- Email us at security@mautic.org
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | mautic/core | < 3.3.4, >= 4.0.0-alpha1, < 4.0.0 | 3.3.4, 4.0.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
mautic/core- Disclosed
- 01.09.2021
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-72hm-fx78-xwhc - CC BY 4.0
Vulnerability history: mautic/core
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 57
- First → latest
- 01.2021 07.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 9
- High 17
- Medium 29
- Low 2
Disclosures per year
- 2021: 16
- 2022: 7
- 2023: 0
- 2024: 13
- 2025: 13
- 2026: 8
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XSS vulnerability on contacts view this entry
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