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

References

• GHSA-39wj-j3jc-858m
• mautic/mautic@20c5dc3
• https://packagist.org/packages/mautic/core
• https://www.mautic.org/blog/community/security-release-all-versions-mautic-prior-2-16-5-and-3-2-4
• https://nvd.nist.gov/vuln/detail/CVE-2020-35124
• https://forum.mautic.org/c/announcements/16
• https://www.horizon3.ai/disclosures/mautic-unauth-xss-to-rce
• https://github.com/FriendsOfPHP/security-advisories/blob/master/mautic/core/CVE-2020-35124.yaml