Is this vulnerability exploitable over the internet or only locally?

It can be exploitable over the internet if the Chikitsa instance is exposed and an attacker can authenticate to the application and access the backup restore interface. No local OS-level access is required.

What level of access does an attacker need to exploit this issue?

The attacker must have valid application credentials with permissions to upload and restore backup ZIP files. Unauthenticated users cannot typically exploit this path directly, but credential theft or weak account controls can make exploitation easier.

What is the safest general fix pattern for this vulnerability?

The most robust fix is to ensure that backup restoration never results in executable files being deployed into web-accessible locations. This involves strict whitelisting of allowed file types, verifying archive contents before extraction, and storing restored data outside the document root or any directory interpreted by the PHP engine.

Severity:

HIGH RISK

(8.8)

Unrestricted File Upload (CWE-434) in Chikitsa Patient Management System Backup Restore

CVE-2021-47757

Published:

Jan 15, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Unrestricted File Upload

CWE:

CWE-434

Impact:

Authenticated Remote Code Execution

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Unrestricted File Upload

CWE:

CWE-434

Impact:

Authenticated Remote Code Execution

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Unrestricted File Upload (CWE-434) in Chikitsa Patient Management System Backup Restore

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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