4.8
CVSSv3

CVE-2021-29434

Published: 19/04/2021 Updated: 29/04/2021
CVSS v2 Base Score: 3.5 | Impact Score: 2.9 | Exploitability Score: 6.8
CVSS v3 Base Score: 4.8 | Impact Score: 2.7 | Exploitability Score: 1.7
VMScore: 312
Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N

Vulnerability 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).

Vulnerability Trend

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