CVE-2026-19383
Received Received - Intake

Unrestricted File Upload in SaiAdmin Plugin Upload Endpoint

Publication date: 2026-08-10

Last updated on: 2026-08-10

Assigner: VulDB

Description
A security vulnerability has been detected in saithink/saigroup SaiAdmin up to 5.0.1. This impacts the function shell_exec of the file /app/saipackage/install/upload of the component Plugin Upload Endpoint. The manipulation leads to unrestricted upload. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. This product is published by multiple vendors.

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Meta Information

Published
2026-08-10
Last Modified
2026-08-10
Generated
2026-08-10
AI Q&A
2026-08-10
EPSS Evaluated
N/A
NVD
CVE-2026-19383
EUVD
EUVD-2026-54982

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
saithink saigroup 5.0.1
saithink saipackage From 1.0.0 (inc) to 1.1.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

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Executive Summary

CVE-2026-19383 is a Remote Code Execution (RCE) vulnerability in the SaiAdmin Saipackage plugin system. It allows attackers with admin JWT tokens to upload malicious ZIP packages containing PHP code via the plugin upload interface. The package is installed, copying PHP files to the Webman plugin directory and triggering a server restart. Attackers can then create scheduled tasks to execute arbitrary system commands with web server privileges.

Detection Guidance

To detect this vulnerability, check for unauthorized plugin uploads in the /app/saipackage/install/upload endpoint. Look for unexpected ZIP files containing PHP code in the Webman plugin directory. Monitor server logs for unusual scheduled tasks or plugin installations.

Impact Analysis

This vulnerability can allow attackers to execute arbitrary commands on your server, gain full control over it, and potentially forge admin tokens. If exploited, it may lead to data theft, system compromise, or unauthorized access to sensitive information.

Compliance Impact

This vulnerability can lead to unauthorized access and data breaches, which may violate compliance requirements under GDPR and HIPAA. It could result in unauthorized data exposure, lack of data integrity, and failure to protect sensitive information, potentially leading to legal and regulatory penalties.

Mitigation Strategies

Immediately update SaiAdmin and Saipackage to versions beyond v5.1.8 and v1.1.1 respectively. Disable the plugin upload endpoint if not required. Implement strict input validation for uploaded files and enforce plugin signature verification. Restrict class instantiation in scheduled tasks and validate file paths to prevent path traversal.

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