CVE-2026-25345
Improper Quantity Validation in SimpLy Gallery Enables Unauthorized Access
Publication date: 2026-03-25
Last updated on: 2026-04-23
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| simply_gallery | simple_gallery_block | to 3.3.2 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-1284 | The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an Improper Validation of Specified Quantity in Input issue found in the GalleryCreator SimpLy Gallery simply-gallery-block. It allows accessing functionality that is not properly constrained by Access Control Lists (ACLs). Essentially, the software does not correctly check or restrict certain input quantities, which can lead to unauthorized access to features or functions.
How can this vulnerability impact me? :
The impact of this vulnerability is that an attacker could gain access to functionality within the SimpLy Gallery simply-gallery-block that should be restricted. This unauthorized access could lead to misuse or manipulation of the gallery features, potentially compromising the integrity or confidentiality of the system or its data.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The vulnerability in the SimpLy Gallery Plugin allows attackers with certain privileges to execute arbitrary code remotely, which can lead to unauthorized access and potential data breaches.
Such unauthorized access and potential data compromise can negatively impact compliance with common standards and regulations like GDPR and HIPAA, which require strict controls over data access and protection against unauthorized activities.
Failure to remediate this vulnerability promptly could result in violations of these regulations due to inadequate access control and potential exposure of sensitive information.
What immediate steps should I take to mitigate this vulnerability?
The immediate remediation involves updating the SimpLy Gallery Plugin to version 3.3.2.1 or later.
If updating is not possible, users are advised to seek assistance from their hosting provider or web developer.
Patchstack also provides a mitigation rule that blocks attacks until the plugin is updated, and offers automatic updates for vulnerable plugins to ensure rapid protection.
Prompt mitigation is important to prevent exploitation of this critically dangerous vulnerability.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
The vulnerability affects WordPress sites using the SimpLy Gallery Plugin versions up to 3.3.2, allowing arbitrary code execution by users with Contributor or Developer privileges.
Detection typically involves checking the installed plugin version and monitoring for suspicious activity related to the plugin.
To detect if your system is vulnerable, you can verify the plugin version installed on your WordPress site.
- Use WP-CLI to check the plugin version: wp plugin list --status=active | grep simply-gallery-block
- Alternatively, check the plugin version in the WordPress admin dashboard under Plugins.
For network detection, monitoring HTTP requests for unusual or unauthorized attempts to exploit the plugin's functionality may help, but no specific commands or signatures are provided.
Patchstack provides mitigation rules that can block attacks until the plugin is updated, which can be integrated into web application firewalls or security tools.