Impact
A potential Server-Side Template Injection vulnerability exists in Sprout Forms which could lead to the execution of Twig code.
Patches
The problem is fixed inbarrelstrength/sprout-forms:v3.9.0 which upgrades to barrelstrength/sprout-base-email:v1.2.7
Workarounds
Users unable to upgrade should update any Notification Emails to use the "Basic Notification (Sprout Email)" template and avoid using the "Basic Notification (Sprout Forms)" template or any custom templates that display Form Fields.
References
- See the release notes in the CHANGELOG
- Credits to Paweł Hałdrzyński, Daniel Kalinowski from ISEC.PL for discovery and responsible disclosure
For more information
If you have any questions or comments about this advisory:
llamaonsecurity Analyst
Impact
A potential Server-Side Template Injection vulnerability exists in Sprout Forms which could lead to the execution of Twig code.
Patches
The problem is fixed in
barrelstrength/sprout-forms:v3.9.0which upgrades tobarrelstrength/sprout-base-email:v1.2.7Workarounds
Users unable to upgrade should update any Notification Emails to use the "Basic Notification (Sprout Email)" template and avoid using the "Basic Notification (Sprout Forms)" template or any custom templates that display Form Fields.
References
For more information
If you have any questions or comments about this advisory: