Impact

Mautic versions before 3.3.4 / 4.0.0 are vulnerable to an inline JS XSS attack when viewing Mautic assets by utilizing inline JS in the title and adding a broken image URL as a remote asset. This can only be leveraged by an authenticated user with permission to create or edit assets.

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