External risk intelligence

Progress Sitefinity Improper Access Control Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-7198

Progress Sitefinity is a content management system typically deployed as an internet-facing web application. As a web service accessible to remote users for content management and delivery, it is commonly exposed to the public internet.

Progress Sitefinity

15.4.8623 to before 15.4.8630

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in Progress Sitefinity's web services, specifically related to improper access control. This issue allows unauthenticated remote attackers to access sensitive content, potentially leading to a complete compromise of confidentiality, integrity, and availability for affected systems. The main concern is confirming relevance and exposure to understand the potential business impact.

Attackers can access restricted content remotely.
This could lead to full system compromise.
Confirm relevance and assess exposure immediately.

Attack Path

How an attacker could exploit the issue

An attacker can reach this vulnerability by sending a request to the Sitefinity web service without any authentication. This allows them to access restricted content, potentially leading to a complete takeover of the affected installation.

No authentication is required.
Access restricted content via web service.
Full compromise of data and system.

Live Threat

Current exploitation, exposure, and threat context

A remote, unauthenticated attacker could access restricted content on Progress Sitefinity web services. This could lead to the compromise of confidentiality, integrity, and availability of affected installations when they are exposed to the network.

Content that should be restricted.
Via unauthenticated network access.
Full installation compromise.

Operational Fix

Recommended remediation, mitigation, and detection steps

Compromise of Progress Sitefinity web services requires immediate attention from application owners and platform teams responsible for managing the Sitefinity instances. The first practical step is to inventory all Sitefinity deployments, confirm their internet exposure and business criticality, and identify the specific teams accountable for each instance before planning remediation.

Application owners must own this issue.
Verify internet exposure and business criticality.
Plan coordinated remediation actions.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Progress Sitefinity?

Progress Sitefinity is a content management system used to build and manage websites and digital experiences. It provides web services that allow organizations to store, publish, and serve content to users. Because it serves as a central hub for digital assets, it is a critical component for web-based business operations.

What does CWE-284 mean for CVE-2026-7198?

CWE-284 refers to Improper Access Control, a weakness where a system fails to correctly verify the permissions of a user. In the context of CVE-2026-7198, this means the software does not properly check if someone is allowed to see specific information. Consequently, the system grants unauthorized users access to sensitive data and functions that should have been protected.

How does an attacker trigger this vulnerability?

An attacker triggers this vulnerability by sending a network request directly to the Sitefinity web service. No login, password, or prior authentication is required to initiate the request. It is important to note that simply visiting the public-facing pages of the website does not trigger the bug; it requires specific interaction with the vulnerable web service endpoints.

Is my instance at risk according to Halo Surface Signal?

Halo Surface Signal flags this as a priority because Progress Sitefinity is typically deployed as an internet-facing web application. Since the service is designed to be accessible to remote users for content delivery, instances exposed to the public internet are at higher risk of being reached by an attacker compared to those strictly restricted to an internal network.

What should I do if I run Sitefinity?

Your first step is to create an inventory of all your Sitefinity deployments to determine which are currently active. Confirm the business criticality of each instance and identify the team responsible for maintaining it. Once you have this map of your environment, you can coordinate the necessary updates to secure your systems and prevent unauthorized access.

References

community.progress.com/s/article/Sitefinity-Security-Advisory-for-Addressing…

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.