Roundcube Webmail XSS Vulnerability
CVE-2024-37383

6.1MEDIUM

Key Information:

Vendor: Roundcube Webmail
Status: Webmail
Vendor: CVE Published:; 7 June 2024

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📈 Score: 115💰 Ransomware👾 Exploit Exists🟡 Public PoC🦅 CISA Reported📰 News Worthy

What is CVE-2024-37383?

CVE-2024-37383 is a vulnerability found in Roundcube Webmail, a widely used open-source webmail software that enables users to manage their emails through a web interface. This particular vulnerability allows for cross-site scripting (XSS) attacks through the manipulation of SVG animate attributes. Organizations using versions of Roundcube Webmail prior to 1.5.7 and 1.6.x before 1.6.7 are at risk, as the vulnerability can be exploited by malicious actors to execute unauthorized scripts. This exposes users to various threats, including data theft, session hijacking, and other forms of exploitation, which could severely undermine an organization's security posture and compromise sensitive information.

Technical Details

The vulnerability manifests through the improper handling of SVG (Scalable Vector Graphics) animations within the webmail interface. Attackers can craft malicious SVG content that, when viewed by a user, executes JavaScript in the context of that user's session. This allows the attacker to perform actions such as stealing cookies or impersonating users. The flaw exists in versions of Roundcube Webmail released before 1.5.7 and among the 1.6.x series prior to 1.6.7. The software developers have acknowledged this vulnerability and have since provided patches to mitigate the risk in later releases.

Potential impact of CVE-2024-37383

Unauthorized Access: Exploitation of this vulnerability can lead to unauthorized access to user sessions. Attackers can hijack active sessions, potentially compromising sensitive communications and user accounts.
Data Theft: With the ability to execute scripts in the context of another user's session, there is a significant risk of data theft. This may include access to personally identifiable information (PII), email content, and other confidential data stored within user accounts.
Reputation Damage: Organizations affected by the successful exploitation of this vulnerability may face reputational harm due to breaches of trust with customers and stakeholders. The potential for public exposure of sensitive data can further exacerbate the impact on an organization's standing in the community.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace as recent news articles suggest the vulnerability is being used by ransomware groups.

The CISA's recommendation is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2024-37383-POC
Created by bartfroklage

CVE-2024-37383-exploit
Created by amirzargham