EUVD-2025-18941Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Requires low privileges, network accessible, low complexity, low integrity impact.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
Missing Authorization vulnerability in GrandPlugins Image Sizes Controller, Create Custom Image Sizes, Disable Image Sizes allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Image Sizes Controller, Create Custom Image Sizes, Disable Image Sizes: from n/a through 1.0.9.
AnalysisAI
Missing authorization in GrandPlugins Image Sizes Controller, Create Custom Image Sizes, and Disable Image Sizes WordPress plugins allows authenticated attackers with low privileges to exploit incorrectly configured access controls, potentially modifying image size settings. The vulnerability affects all versions up to 1.0.9 and has a low EPSS score (0.05%), with no public exploit or active exploitation confirmed.
Technical ContextAI
The vulnerability is a Missing Authorization (CWE-862) in WordPress plugins that manage image sizes. The affected plugins are installed as WordPress plugins, which typically use role-based access control. The CPE data indicates the product is 'image-sizes-controller' by GrandPlugins. The root cause is that certain functionality does not properly verify user capabilities, allowing authenticated users with low privileges (e.g., subscribers) to perform actions intended for higher-privileged roles like administrators.
RemediationAI
Upgrade to version 1.1.0 or later if available; otherwise, apply the vendor patch from the Patchstack advisory. As a workaround, restrict access to the plugin's functionality by modifying user roles or using a WordPress access control plugin to limit low-privilege users from accessing the plugin settings. Note that disabling the plugin entirely may affect image size management features.
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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