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CVE-2020-11056: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

May 8, 2020 (updated October 27, 2021)

In Sprout Forms before 3.9.0, there is a potential Server-Side Template Injection vulnerability when using custom fields in Notification Emails which could lead to the execution of Twig code. This has been fixed in 3.9.0.

References

  • github.com/advisories/GHSA-px8v-hxxx-2rgh
  • github.com/barrelstrength/craft-sprout-base-email/commit/5ef759f4713ede6dbf77c9d9df9f992876e43a49
  • github.com/barrelstrength/craft-sprout-forms/blob/v3/CHANGELOG.md
  • github.com/barrelstrength/craft-sprout-forms/security/advisories/GHSA-px8v-hxxx-2rgh
  • nvd.nist.gov/vuln/detail/CVE-2020-11056

Code Behaviors & Features

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Affected versions

All versions before 3.9.0

Fixed versions

  • 3.9.0

Solution

Upgrade to version 3.9.0 or above.

Impact 6.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Learn more about CVSS

Weakness

  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Source file

packagist/barrelstrength/sprout-forms/CVE-2020-11056.yml

Spotted a mistake? Edit the file on GitLab.

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