Arbitrary file upload in Jiangweifang Live2dwebcanvas
CVE-2026-92895
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.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php
- plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php
- plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php
- plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php
- plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php
- plugins.trac.wordpress.org/browser/live-2d/trunk/wordpress-live2d.php
- www.wordfence.com/threat-intel/vulnerabilities/id/d6f6a941-972d-420f-bc56-e4b95…
Frequently asked questions
- What is CVE-2026-92895?
- CVE-2026-92895 is a high-severity vulnerability in Jiangweifang Live2dwebcanvas, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.1/10. Published 2026-11-06.
- How severe is CVE-2026-92895?
- High severity. CVSS v3 base score is 8.1 out of 10.