CVE-2021-29434

Summary

Wagtail is a Django content management system. In affected versions of Wagtail, when saving the contents of a rich text field in the admin interface, Wagtail does not apply server-side checks to ensure that link URLs use a valid protocol. A malicious user with access to the admin interface could thus craft a POST request to publish content with javascript: URLs containing arbitrary code. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. See referenced GitHub advisory for additional details, including a workaround. Patched versions have been released as Wagtail 2.11.7 (for the LTS 2.11 branch) and Wagtail 2.12.4 (for the current 2.12 branch).

Affected Software

VendorProductVersion RangeStatus
wagtailwagtail<= 2.11.6affected
wagtailwagtail>= 2.12, <= 2.12.3affected

Weaknesses

  • CWE-79: {"CWE-79":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}

ADP Enrichment

CVE Program Container

Additional References

References