CVE-2026-92895

Live2DWebCanvas <= 2.2.1 - Unauthenticated Arbitrary File Upload via 'modelApi' Parameter

CVSS score

8.1

EPSS probability

—

Risk score

0.8

Published

5 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

Live2DWebCanvas <= 2.2.1 Unauthenticated Arbitrary File Upload Vulnerability

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

The Live2DWebCanvas plugin for WordPress up to version 2.2.1 is vulnerable to arbitrary file upload via the download_one_file function due to missing file extension whitelist and MIME type validation.

Why does it matter?

This vulnerability allows unauthenticated attackers to upload executable files and potentially achieve remote code execution under specific configuration settings.

What should be done?

Follow vendor advisories
Keep the plugin updated
Review custom-local configurations

Chain of evidence and sources2 verified claims

Live2DWebCanvas 2.2.1 ve önceki sürümler kimlik doğrulanmamış rastgele dosya yükleme zafiyetine sahiptir.

S0 · daybreach-canonical S1 · cvelist

Zafiyet, download_one_file fonksiyonunda dosya uzantısı beyaz listesi ve MIME türü doğrulamasının bulunmamasından kaynaklanır.

S0 · daybreach-canonical S1 · cvelist

Show the technical text from the sources

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.

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-434

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-92895 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	jiangweifang	Live2DWebCanvas	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
8.1	CVSS V3_1	HIGH	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	CVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-92895 is associated with the following CWEs:

CWE-434: Common Weakness Enumeration Entry CWE-434

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-92895 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

UserGerekmiyor

Official Sources and Advisories

https://www.wordfence.com/threat-intel/vulnerabilities/id/d6f6a941-972d-420f-bc56-e4b955e30313?source=cvevendor-advisory https://plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php#L1054vendor-advisory https://plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php#L965vendor-advisory https://plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php#L235vendor-advisory https://plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php#L1016vendor-advisory https://plugins.trac.wordpress.org/browser/live-2d/trunk/src/live2d-V2Api.php#L114vendor-advisory https://plugins.trac.wordpress.org/browser/live-2d/trunk/wordpress-live2d.php#L190vendor-advisory

CVSS Vector Radar Chart

8.1 / 10

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone required

User InteractionNone required

Confidentiality (Gizlilik)High

Integrity (Bütünlük)None

Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

jiangweifang

Weakness Type (CWE & CAPEC)

CWE-434

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