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CVE-2023-48777: Critical Vulnerability in Elementor Website Builder

CVE-2023-48777 is a critical vulnerability in the Elementor Website Builder that allows for unrestricted file uploads, posing significant risks. Organizations using affected versions must patch immediately to mitigate the threat.

CRITICALPublic ExploitCVSS 9.9 · Published March 26, 2024

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CVE-2023-48777 is a critical vulnerability affecting the Elementor Website Builder, specifically versions from 3.3.0 through 3.18.1. This vulnerability allows for unrestricted upload of files with dangerous types, which could be exploited by malicious actors to execute arbitrary code on the server. The CVSS score of 9.9 indicates the severity of this issue, categorizing it as critical.

Risk to organizations includes potential unauthorized access to sensitive data, server takeover, and disruption of service availability. The attack vector is through the network, with low complexity and low privileges required for exploitation. Organizations using the affected versions should prioritize patching immediately.

As of now, a public proof of concept (PoC) has been identified on GitHub, indicating that the vulnerability can be actively exploited. Security teams must take this threat seriously and implement necessary mitigations to protect their systems.

Given the critical nature of this vulnerability, organizations using Elementor Website Builder must assess their exposure and take immediate action to remediate.

Vulnerability Details

The vulnerability is characterized as an unrestricted file upload, classified under CWE-434. This allows attackers to upload potentially malicious files, leading to severe consequences such as remote code execution.

The CVSS score of 9.9 (critical) signifies a high level of risk associated with this vulnerability, with high impacts on confidentiality, integrity, and availability.

The affected component is the Elementor Website Builder, which has been widely used for WordPress site development.

Technical Analysis

The root cause of this vulnerability arises from the lack of adequate file type validation when uploading files. The attack vector is network-based, with low complexity due to minimal privileges required for exploitation. No user interaction is necessary for this vulnerability to be exploited.

The confidentiality, integrity, and availability impacts are all rated as high, meaning that attackers can potentially access sensitive data, modify files, or disrupt services.

Risk & Impact Analysis

Organizations using affected versions of Elementor are at significant risk due to the potential for unauthorized access and data breaches. The blast radius of exploitation could extend to all sites utilizing the builder, potentially impacting multiple clients or customers.

Given the critical CVSS score and the existence of a public PoC, organizations should prioritize remediation efforts to address this vulnerability in their systems.

Signal

Status

Known Exploit

Yes

Public PoC

Yes

Actively Exploited

No

Ransomware Use

No

Affected Versions

The vulnerability affects Elementor Website Builder versions from 3.3.0 through 3.18.1. Organizations should ensure they are running versions beyond 3.18.1 to mitigate this risk.

Mitigation & Remediation

Organizations must patch to the latest version of Elementor Website Builder immediately to address this vulnerability. If patching is not possible, consider implementing file upload restrictions, performing regular security assessments, and enhancing monitoring to detect unusual behaviors.

For organizations seeking assistance, consider utilizing penetration testing services to evaluate and strengthen your security posture.

Detection Guidance

Organizations should monitor logs for indicators of unauthorized file uploads, unexpected changes to web directories, and unusual traffic patterns that may indicate exploitation attempts.

AppSecure Threat Intelligence Insight

CVE-2023-48777 represents a significant threat in the context of web application security. Organizations should reflect on their security practices regarding file uploads and ensure that proper validation mechanisms are in place.

To further enhance security measures, organizations should consider implementing a penetration testing methodology to regularly assess their systems.

Furthermore, understanding the latest trends in vulnerabilities can help organizations proactively defend against future threats. Regular updates and security training can play a crucial role in maintaining a robust security posture.

For a comprehensive approach, integrating vulnerability management programs can significantly reduce exposure to risks.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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