CVE-2021-29434

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).

Risk Information

Base Score

4.8

MODERATE

Vector

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

EPSS Score

Exploitation Probability

0.274

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-29434 are fixed in Python-wagtail 2.11.7	Windows
Vulnerabilities CVE-2021-29434 are fixed in Python-wagtail 2.12.4	Windows
Vulnerabilities CVE-2021-29434 are fixed in Python-wagtail for linux 2.11.7	Linux
Vulnerabilities CVE-2021-29434 are fixed in Python-wagtail for linux 2.12.4	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234