Live2DWebCanvas <= 1.9.11 - Authenticated (Subscriber+) Arbitrary File Deletion
Strategic Overview
- Status
- Patched in 1.9.12
- Affected Plugin
- Live2DWebCanvas
- Affected Version
<= 1.9.11- CVSS
- 8.1High
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2024-13767
At a glance
CVE-2024-13767 is a high-severity Missing Authorization vulnerability in the Live2DWebCanvas WordPress plugin, affecting versions <= 1.9.11. It carries a CVSS score of 8.1 (reachable over the network; low attack complexity; high integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.9.12; sites on affected versions should update now. Disclosed January 2025, reported by Lucio Sá.
Vulnerability Overview
The Live2DWebCanvas plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the ClearFiles() function in all versions up to, and including, 1.9.11. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on integrity, availability.
CWE-862: Missing Authorization
Live2DWebCanvas <= 1.9.11 carries this weakness at ClearFiles(), and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Live2DWebCanvas the fix is 1.9.12: builds <= 1.9.11 are affected, anything from 1.9.12 onward is not.
Remediation
Update to version 1.9.12, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Live2DWebCanvas 1.9.12 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
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