Overview
This blog post explores an alarming security vulnerability identified as CVE-2025-43698 in Salesforce OmniStudio, specifically the FlexCards component. The vulnerability allows a malicious agent to bypass field level security controls for Salesforce objects, potentially leading to system compromise or data leakage. This is a critical issue for businesses using Salesforce OmniStudio before Spring 2025, as the exploit could lead to unauthorized access to sensitive data and system functionalities. Understanding the details of this vulnerability and applying appropriate mitigation measures are crucial to safeguarding the integrity and security of systems.
Vulnerability Summary
CVE ID: CVE-2025-43698
Severity: Critical (CVSS Score: 9.1)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
Salesforce OmniStudio | Before Spring 2025
How the Exploit Works
The Improper Preservation of Permissions vulnerability (CVE-2025-43698) operates by exploiting the lax security controls in Salesforce OmniStudio FlexCards. The vulnerability allows an attacker to bypass field level security controls in Salesforce objects. This means that an attacker can manipulate, read, or delete data without the necessary permissions. Essentially, the exploit grants unauthorized access to system resources and sensitive data, posing a significant security risk.
Conceptual Example Code
The following is a conceptual example of how the vulnerability might be exploited. Please note that this is a simplified representation and the actual exploit could be more complex.
POST /salesforce/omnistudio/flexcards/ HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "salesforce_object": "sensitive_data",
"action": "read",
"security_bypass": "true"
}In this example, a malicious user sends a POST request to the FlexCards endpoint of the Salesforce OmniStudio application. They specify an action on a specific Salesforce object (“sensitive_data”) and set “security_bypass” to “true”, effectively bypassing the field level security controls.
Mitigation Measures
Salesforce has released a patch addressing this vulnerability. All users of Salesforce OmniStudio are strongly encouraged to update their systems to the latest version. In cases where immediate patching is not possible, users can apply temporary mitigation measures such as using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and control incoming and outgoing network traffic, thereby detecting and preventing potential exploits.