CVE-2026-7313

Executive Summary

CVE-2026-7313 is a critical vulnerability in Progress Sitefinity, a popular .NET-based web content management system (CMS). The flaw resides in the web services layer and allows a remote authenticated attacker with valid back-end authorization to retrieve plain-text credentials used to connect to the Sitefinity Insight service. This is a classic case of CWE-522: Insufficiently Protected Credentials, where sensitive authentication material is stored or transmitted in a recoverable format.

The vulnerability affects all Sitefinity versions from 8.0.5700 up to 13.3.7652. Successful exploitation requires the target site to have an active integration with Sitefinity Insight (a non-default configuration) and the attacker must possess a valid back-end user account with sufficient privileges. The CVSS score of 8.7 (High) reflects the severe confidentiality impact, as the exposed credentials could be reused to pivot to other internal systems or cloud services.

Supply Chain & Package Security

This vulnerability is not related to an open-source package manager (NPM, PyPI, Go, Ruby). Sitefinity is a proprietary .NET CMS distributed via NuGet and direct downloads. The risk is primarily to the deploying organization’s internal infrastructure and any connected cloud services (Sitefinity Insight).

CVSS Breakdown & Threat Level

• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
• Base Score: 8.7 (High)
• Attack Vector (AV): Network – the vulnerability is exploitable remotely.
• Attack Complexity (AC): Low – no special conditions or race conditions.
• Privileges Required (PR): High – attacker needs a valid back-end account.
• User Interaction (UI): None – no victim action required.
• Scope (S): Unchanged – the vulnerable component and the impacted component are the same.
• Confidentiality (C): High – plain-text credentials are exposed.
• Integrity (I): High – credentials could be used to modify Insight service data.
• Availability (A): High – potential for denial of service via credential abuse.

Threat Level: High. While the attack requires authentication, the low complexity and network-based vector make it attractive for insider threats or attackers who have already compromised a low-privilege account.

Deep Dive & Mechanics

The vulnerability exists in the web services layer of Sitefinity that handles communication with the Sitefinity Insight service. Insight is an analytics and personalization service that requires API credentials to function.

Root Cause: The application stores the Insight service credentials (API key/secret) in a recoverable format within the Sitefinity database or configuration files. When a back-end user with appropriate permissions (e.g., an administrator or a user with access to the Insight settings) makes a request to the relevant web service endpoint, the application returns the credentials in plain text instead of masking or hashing them.

Attack Flow:

1. Attacker gains access to a valid Sitefinity back-end account (e.g., via phishing, credential stuffing, or previous compromise).
2. Attacker navigates to the Sitefinity Insight configuration page or calls the vulnerable API endpoint (e.g., /Sitefinity/Services/Insight/GetCredentials).
3. The web service returns the plain-text API key and secret for the Insight service.
4. Attacker uses these credentials to access the Sitefinity Insight backend, potentially exfiltrating analytics data, modifying personalization rules, or pivoting to other services that share the same credentials.

Why It Matters: The Insight service is often integrated with other cloud services (e.g., Azure, AWS). Reusing the same credentials across services could lead to a broader compromise.

Vulnerable vs. Patched Code

Since no official patch has been released, the following is a hypothetical comparison based on the vulnerability description.

Vulnerable Code (C# - ASP.NET Web API):

[HttpPost]
[Authorize(Roles = "Administrators")]
public HttpResponseMessage GetInsightCredentials()
{
    var config = SitefinityContext.Current.GetSection<InsightConfig>();
    var credentials = new
    {
        ApiKey = config.ApiKey,          // Stored in plain text
        ApiSecret = config.ApiSecret     // Stored in plain text
    };
    return Request.CreateResponse(HttpStatusCode.OK, credentials);
}

Patched Code (Hypothetical):

[HttpPost]
[Authorize(Roles = "Administrators")]
public HttpResponseMessage GetInsightCredentials()
{
    var config = SitefinityContext.Current.GetSection<InsightConfig>();
    var credentials = new
    {
        ApiKey = MaskString(config.ApiKey, 4),      // Show only last 4 chars
        ApiSecret = "********"                       // Never expose secret
    };
    return Request.CreateResponse(HttpStatusCode.OK, credentials);
}

private string MaskString(string input, int visibleChars)
{
    if (string.IsNullOrEmpty(input) || input.Length <= visibleChars)
        return "****";
    return new string('*', input.Length - visibleChars) + input.Substring(input.Length - visibleChars);
}

The patched version would never return the full credentials in a response, instead masking all but the last few characters of the API key and completely hiding the secret.

Exploitation & Lab Setup

Red Team (Exploitation)

Prerequisites:

• A Sitefinity instance (version 8.0.5700 to 13.3.7652) with Sitefinity Insight integration enabled.
• A valid back-end user account with at least "Administrator" role or equivalent permissions to access Insight settings.

Exploitation Steps:

1. Authenticate to Sitefinity Backend:

   POST /Sitefinity/Authenticate/SWT
   Content-Type: application/json
   
   {
     "username": "attacker@example.com",
     "password": "compromised_password"
   }
   

2. Obtain Session Cookie: The response will set a cookie (e.g., ASP.NET_SessionId and .ASPXAUTH). Capture these.

3. Call the Vulnerable Endpoint:

   GET /Sitefinity/Services/Insight/GetCredentials
   Cookie: ASP.NET_SessionId=abc123; .ASPXAUTH=def456
   

4. Extract Plain-Text Credentials: The response will contain the API key and secret in JSON format:

   {
     "ApiKey": "sk_live_1234567890abcdef",
     "ApiSecret": "secret_live_abcdef123456"
   }
   

5. Pivot to Insight Service: Use the credentials to authenticate to the Sitefinity Insight API (e.g., https://insight.sitefinity.com/api/v1/...).

Blue Team (Detection & Hardening)

Detection:

• Monitor for unusual access to the /Sitefinity/Services/Insight/GetCredentials endpoint.
• Alert on any successful response from this endpoint that is not associated with a known administrative action.
• Correlate with failed login attempts or privilege escalation events.

Hardening:

• Immediate: Disable Sitefinity Insight integration if not required.
• Workaround: Implement a custom HTTP module or reverse proxy rule to block access to the vulnerable endpoint except from whitelisted IPs.
• Long-term: Apply the vendor patch as soon as it becomes available.

Indicators of Compromise (IOCs)

• Network IOCs:
  • HTTP requests to /Sitefinity/Services/Insight/GetCredentials with a 200 OK response.
  • Outbound connections from the Sitefinity server to insight.sitefinity.com using stolen credentials.
• File IOCs:
  • Unusual entries in Sitefinity logs containing the string GetCredentials or InsightConfig.
• Behavioral IOCs:
  • A back-end user account accessing the Insight configuration page outside of normal business hours.
  • Multiple failed login attempts followed by a successful login and immediate access to the Insight settings.

Detection Engineering

YARA Rule

rule CVE_2026_7313_Sitefinity_Credential_Leak {
    meta:
        description = "Detects Sitefinity Insight credential exposure in HTTP responses"
        author = "Valters IT"
        date = "2025-04-10"
        cve = "CVE-2026-7313"
    strings:
        $json_key = /"ApiKey"\s*:\s*"[A-Za-z0-9_\-]+"/
        $json_secret = /"ApiSecret"\s*:\s*"[A-Za-z0-9_\-]+"/
        $endpoint = "/Sitefinity/Services/Insight/GetCredentials"
    condition:
        $endpoint and ($json_key or $json_secret)
}

Sigma Rule

title: CVE-2026-7313 - Sitefinity Insight Credential Exposure
id: 8f7a3b2c-1d4e-5f6a-7b8c-9d0e1f2a3b4c
status: experimental
description: Detects HTTP requests to the vulnerable Sitefinity Insight credentials endpoint
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: iis
detection:
    selection:
        cs-uri-stem: '/Sitefinity/Services/Insight/GetCredentials'
        sc-status: 200
    condition: selection
falsepositives:
    - Legitimate administrative access to Insight settings
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2026-7313 - Sitefinity Insight Credential Exposure"; flow:to_server,established; content:"/Sitefinity/Services/Insight/GetCredentials"; http_uri; nocase; content:"200"; http_stat_code; classtype:attempted-recon; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable Sitefinity Insight if not actively used. This removes the attack surface entirely.
2. Review back-end user accounts and revoke access for any suspicious or unnecessary accounts.
3. Rotate any credentials that may have been exposed (API keys, secrets) for the Insight service and any other services that share the same credentials.

Short-Term Mitigation:

• Implement a Web Application Firewall (WAF) rule to block requests to /Sitefinity/Services/Insight/GetCredentials except from trusted IP ranges.
• Apply the principle of least privilege: ensure only a minimal number of administrators have access to the Insight configuration.

Long-Term Remediation:

• Apply the official patch from Progress Software as soon as it is released.
• Conduct a security audit of all Sitefinity web services to identify similar credential exposure issues.
• Implement credential rotation policies and use a secrets management solution (e.g., HashiCorp Vault) to store sensitive configuration.

Valters IT
Senior DevSecOps & Cyber Threat Intelligence Analyst