jiangweifang Live2DWebCanvas Plugin up to 2.2.1 on WordPress download_one_file unrestricted upload

Summaryinfo

A vulnerability classified as critical was found in jiangweifang Live2DWebCanvas Plugin up to 2.2.1. This issue affects the function download_one_file. The manipulation results in unrestricted upload. This vulnerability is identified as CVE-2026-92895. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in jiangweifang Live2DWebCanvas Plugin up to 2.2.1. Affected is the function download_one_file. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the upload or transfer of dangerous file types that are automatically processed within its environment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The Live2DWebCanvas plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.2.1 via the download_one_file function. This is due to missing file extension whitelist and MIME type validation in download_one_file() when writing files derived from attacker-controlled manifest entries to the web-served plugin directory. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible when the plugin's apiType setting is configured as custom-local (self-hosted model mode), a non-default option that requires a paid license and prints the REST nonce and one-time session tokens into every front-end page.

The advisory is available at wordfence.com. This vulnerability is traded as CVE-2026-92895 since 09/17/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/06/2026). This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• jiangweifang

Name

• Live2DWebCanvas Plugin

Version

• 2.2.0
• 2.2.1

CPE 2.3info

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CPE 2.2info

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Entryinfo

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