CVE-2023-45809
Wagtail is an open source content management system built on Django. A user with a limited-permission editor account for the Wagtail admin can make a direct URL request to the admin view that handles bulk actions on user accounts. While authentication rules prevent the user from making any changes, the error message discloses the display names of user accounts, and by modifying URL parameters, the user can retrieve the display name for any user. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. Patched versions have been released as Wagtail 4.1.8 (LTS), 5.0.5 and 5.1.3. The fix is also included in Release Candidate 1 of the forthcoming Wagtail 5.2 release. Users are advised to upgrade. There are no known workarounds for this vulnerability.
| Software | From | Fixed in |
|---|---|---|
wagtail
|
- | 4.1.9 |
|
wagtail
|
4.2.0 | 5.0.5 |
|
wagtail
|
5.1.0 | 5.1.3 |
| torchbox / wagtail | - | 4.1.9 |
| torchbox / wagtail | 4.2 | 5.0.5 |
| torchbox / wagtail | 5.1 | 5.1.3 |
- https://github.com/pypa/advisory-database/tree/main/vulns/wagtail/PYSEC-2023-219.yaml
- https://github.com/wagtail/wagtail/commit/0bacd29473107d9d7f5b723a15a683449679756d
- https://github.com/wagtail/wagtail/commit/2231f462c75dfe84307fb40577e8c2109a23b27e
- https://github.com/wagtail/wagtail/commit/bc96aed6ac53f998b2f4c4bf97e2d4f5fe337e5b
- https://github.com/wagtail/wagtail/releases/tag/v4.1.9
- https://github.com/wagtail/wagtail/releases/tag/v5.0.5
- https://github.com/wagtail/wagtail/releases/tag/v5.1.3
- https://github.com/wagtail/wagtail/security/advisories/GHSA-fc75-58r8-rm3h
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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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