CVE-2021-29434: medium-severity vulnerability in wagtail
Improper validation of URLs ('Cross-site Scripting') in Wagtail rich text fields
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.6%
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:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
Affected products
wagtail · wagtailRelated CVEs — wagtail
In the same product, most dangerous first.
CVE-2020-11001MEDIUMPossible XSS attack in WagtailEPSS 1.3%CVE-2021-32681MEDIUMImproper escaping of HTML ('Cross-site Scripting') in Wagtail StreamField blocksEPSS 1.1%CVE-2020-15118MEDIUMCross-Site Scripting in WagtailEPSS 1.1%CVE-2023-28837MEDIUMWagtail vulnerable to denial-of-service via memory exhaustion when uploading large filesEPSS 1.1%CVE-2022-21683LOWComment reply notifications sent to incorrect users in wagtailEPSS 1.0%CVE-2023-28836MEDIUMWagtail vulnerable to stored Cross-site Scripting attack via ModelAdmin viewsEPSS 0.8%