CVE-2021-29434 | Date: (C)2021-04-20 (M)2023-12-22 |
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 and Metrics +CVSS Score and Metrics -CVSS V3 Severity: | CVSS V2 Severity: |
CVSS Score : 4.8 | CVSS Score : 3.5 |
Exploit Score: 1.7 | Exploit Score: 6.8 |
Impact Score: 2.7 | Impact Score: 2.9 |
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CVSS V3 Metrics: | CVSS V2 Metrics: |
Attack Vector: NETWORK | Access Vector: NETWORK |
Attack Complexity: LOW | Access Complexity: MEDIUM |
Privileges Required: HIGH | Authentication: SINGLE |
User Interaction: REQUIRED | Confidentiality: NONE |
Scope: CHANGED | Integrity: PARTIAL |
Confidentiality: LOW | Availability: NONE |
Integrity: LOW | |
Availability: NONE | |
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