CVE-2023-28836
Wagtail is an open source content management system built on Django. Starting in version 1.5 and prior to versions 4.1.4 and 4.2.2, a stored cross-site scripting (XSS) vulnerability exists on ModelAdmin views within the Wagtail admin interface. A user with a limited-permission editor account for the Wagtail admin could potentially craft pages and documents that, when viewed by a user with higher privileges, could perform actions with that user's credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin, and only affects sites with ModelAdmin enabled. For page, the vulnerability is in the "Choose a parent page" ModelAdmin view (ChooseParentView), available when managing pages via ModelAdmin. For documents, the vulnerability is in the ModelAdmin Inspect view (InspectView) when displaying document fields. Patched versions have been released as Wagtail 4.1.4 and Wagtail 4.2.2. Site owners who are unable to upgrade to the new versions can disable or override the corresponding functionality.
| Software | From | Fixed in |
|---|---|---|
| torchbox / wagtail | 4.2 | 4.2.2 |
| torchbox / wagtail | 1.5 | 4.1.4 |
wagtail
|
1.5 | 4.1.4 |
|
wagtail
|
4.2 | 4.2.2 |
- https://docs.wagtail.org/en/stable/reference/contrib/modeladmin/chooseparentview.html#customising-chooseparentview
- https://docs.wagtail.org/en/stable/reference/contrib/modeladmin/inspectview.html#enabling-customising-inspectview
- https://github.com/wagtail/wagtail/commit/5be2b1ed55fd7259dfdf2c82e7701dba407b8b62
- https://github.com/wagtail/wagtail/commit/bc84bf9815610cfbf8db3b6050c7ddcbaa4b9713
- https://github.com/wagtail/wagtail/commit/eefc3381d37b476791610e5d30594fae443f33af
- https://github.com/wagtail/wagtail/commit/ff806ab173a504395fdfb3139eb0a29444ab4b91
- https://github.com/wagtail/wagtail/releases/tag/v4.1.4
- https://github.com/wagtail/wagtail/releases/tag/v4.2.2
- https://github.com/wagtail/wagtail/security/advisories/GHSA-5286-f2rf-35c2
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A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.
CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.
A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.
Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.
Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.
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