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).
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-04-19T18:45:14

Updated: 2024-08-03T22:02:51.911Z

Reserved: 2021-03-30T00:00:00

Link: CVE-2021-29434

cve-icon Vulnrichment

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cve-icon NVD

Status : Analyzed

Published: 2021-04-19T19:15:17.610

Modified: 2021-04-29T14:24:41.607

Link: CVE-2021-29434

cve-icon Redhat

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