Vulnerability Description
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).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Torchbox | Wagtail | < 2.11.6 |
Related Weaknesses (CWE)
References
- https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fxMitigationThird Party Advisory
- https://pypi.org/project/wagtail/ProductThird Party Advisory
- https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fxMitigationThird Party Advisory
- https://pypi.org/project/wagtail/ProductThird Party Advisory
FAQ
What is CVE-2021-29434?
CVE-2021-29434 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 ensur...
How severe is CVE-2021-29434?
CVE-2021-29434 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29434?
Check the references section above for vendor advisories and patch information. Affected products include: Torchbox Wagtail.