Mautic is vulnerable to XSS vulnerability
Impact
This is a cross-site scripting vulnerability which affects every version of Mautic and could allow an attacker unauthorised administrator level access to Mautic.
This vulnerability was reported by Naveen Sunkavally at Horizon3.ai.
Patches
Upgrade to 3.2.4 or 2.16.5.
Link to patch for 2.x versions: https://github.com/mautic/mautic/compare/2.16.4...2.16.5.diff
Link to patch for 3.x versions: https://github.com/mautic/mautic/compare/3.2.2...3.2.4.diff
Workarounds
None
For more information
If you have any questions or comments about this advisory:
- Post in https://forum.mautic.org/c/support
- 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 | < 2.16.5, >= 3.0.0, < 3.2.4 | 2.16.5, 3.2.4 |
References
- https://github.com/mautic/mautic/security/advisories/GHSA-42q7-95j7-w62m
- https://nvd.nist.gov/vuln/detail/CVE-2020-35125
- https://forum.mautic.org/c/announcements/16
- https://github.com/FriendsOfPHP/security-advisories/blob/master/mautic/core/CVE-2020-35125.yaml
- https://packagist.org/packages/mautic/core
- https://www.horizon3.ai/disclosures/mautic-unauth-xss-to-rce
- https://www.mautic.org/blog/community/security-release-all-versions-mautic-prior-2-16-5-and-3-2-4
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
mautic/core- Disclosed
- 15.05.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-42q7-95j7-w62m - 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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Mautic is vulnerable to XSS vulnerability this entry
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