CVE-2020-12471

CRITICAL

MonoX <5.1.40.5152 - RCE

Title source: llm

Description

MonoX through 5.1.40.5152 allows remote code execution via HTML5Upload.ashx or Pages/SocialNetworking/lng/en-US/PhotoGallery.aspx because of deserialization in ModuleGallery.HTML5Upload, ModuleGallery.SilverLightUploadModule, HTML5Upload, and SilverLightUploadHandler.

References (1)

[Exploit, Third Party Advisory] https://github.com/belong2yourself/vulnerabilities/tree/master/MonoX%20CMS/Remote%20Code%20Execution%20via%20Insecure%20Deserialization

Scores

CVSS v3 9.8

EPSS 0.0325

EPSS Percentile 87.0%

Attack Vector NETWORK

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

Classification

CWE

CWE-502

Status published

Affected Products (1)

mono/monox < 5.1.40.5152

Timeline

Published Apr 29, 2020

Tracked Since Feb 18, 2026