CVE-2023-49783
Silverstripe Admin provides a basic management interface for the Silverstripe Framework. In versions on the 1.x branch prior to 1.13.19 and on the 2.x branch prior to 2.1.8, users who don't have edit or delete permissions for records exposed in a ModelAdmin can still edit or delete records using the CSV import form, provided they have create permissions. The likelihood of a user having create permissions but not having edit or delete permissions is low, but it is possible. Note that this doesn't affect any ModelAdmin which has had the import form disabled via the showImportForm public property. Versions 1.13.19 and 2.1.8 contain a patch for the issue. Those who have a custom implementation of BulkLoader should update their implementations to respect permissions when the return value of getCheckPermissions() is true. Those who use any BulkLoader in their own project logic, or maintain a module which uses it, should consider passing true to setCheckPermissions() if the data is provided by users.
| Software | From | Fixed in |
|---|---|---|
silverstripe / admin
|
1.0.0 | 1.13.19 |
|
silverstripe / admin
|
2.0.0 | 2.1.8 |
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/admin/CVE-2023-49783.yaml
- https://github.com/silverstripe-security/security-issues/issues/177
- https://github.com/silverstripe/silverstripe-admin/commit/9693130a0a637cdf512277cf5f07e83250b191db
- https://github.com/silverstripe/silverstripe-admin/security/advisories/GHSA-j3m6-gvm8-mhvw
- https://github.com/silverstripeltd/product-issues/issues/832
- https://www.silverstripe.org/download/security-releases/CVE-2023-49783
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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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