Is this vulnerability remotely exploitable?

Yes. If the file import or upload interface is reachable over the network, an attacker can exploit the issue remotely by submitting crafted files or metadata.

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

The attacker typically only needs the ability to use the DeftPDF Document Translator's file import functionality. No local shell access is required, though any authentication or access controls on the import endpoint will affect who can exploit it.

What is the safest general fix pattern for this type of issue?

The most robust pattern is to completely decouple user input from filesystem locations: generate server-side filenames, constrain all writes to a dedicated upload directory, validate and canonicalize paths, and ensure the application cannot modify its own code or configuration directories.

Severity:

CRITICAL RISK

(9.8)

Arbitrary File Overwrite (CWE-73) in DeftPDF Document Translator Import Process

CVE-2026-30276

Published:

Mar 31, 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-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Arbitrary File Overwrite / External File Name or Path Control

CWE:

CWE-73

Impact:

Arbitrary Code Execution and Information Exposure

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Arbitrary File Overwrite / External File Name or Path Control

CWE:

CWE-73

Impact:

Arbitrary Code Execution and Information Exposure

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Ask AI for summary of CodeAnt

Arbitrary File Overwrite (CWE-73) in DeftPDF Document Translator Import Process

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

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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