CVE-2026-25925
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Deserialization RCE in PowerDocu JSON Parsing Before

Publication date: 2026-02-09

Last updated on: 2026-02-28

Assigner: GitHub, Inc.

Description
PowerDocu contains a Windows GUI executable to perform technical documentations. Prior to 2.4.0, PowerDocu contains a critical security vulnerability in how it parses JSON files within Flow or App packages. The application blindly trusts the $type property in JSON files, allowing an attacker to instantiate arbitrary .NET objects and execute code. This vulnerability is fixed in 2.4.0.

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Meta Information

Published
2026-02-09
Last Modified
2026-02-28
Generated
2026-07-06
AI Q&A
2026-02-10
EPSS Evaluated
2026-07-05
NVD
CVE-2026-25925

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
modery powerdocu to 2.4.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

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Executive Summary

PowerDocu, a Windows GUI application used for technical documentation, has a critical security vulnerability in versions prior to 2.4.0 related to how it parses JSON files within Flow or App packages.

The vulnerability arises because the application blindly trusts the $type property in these JSON files, which allows an attacker to instantiate arbitrary .NET objects and execute malicious code.

This issue is fixed in version 2.4.0 of PowerDocu.

Impact Analysis

This vulnerability can have severe impacts because it allows an attacker to execute arbitrary code on the affected system by exploiting the way PowerDocu parses JSON files.

Successful exploitation could lead to complete compromise of confidentiality, integrity, and availability of the system running PowerDocu.

According to the CVSS v3.1 score of 7.8, the vulnerability requires local access with low attack complexity and no privileges, but user interaction is required.

Compliance Impact

I don't know

Detection Guidance

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Mitigation Strategies

To mitigate this vulnerability, you should upgrade PowerDocu to version 2.4.0 or later, where the issue with parsing JSON files and arbitrary code execution has been fixed.

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