Critical Sitefinity CMS Vulnerabilities Expose Enterprises to Credential Theft and Unauthorized Access
In May 2026, Progress Software issued a critical security advisory for Sitefinity CMS and Sitefinity Insight, warning of five severe vulnerabilities that could allow threat actors to steal credentials, bypass authentication, and gain unauthorized access to enterprise environments. The flaws, primarily affecting the OData and ServiceStack Web Services components, pose significant risks to organizations relying on the platform for web infrastructure.
The most severe vulnerability, CVE-2026-7312 (CVSS 10.0), stems from insufficiently protected credentials in OData Web Services, enabling remote attackers to extract plaintext credentials from Sitefinity versions 14.0 through 15.4. Another critical flaw, CVE-2026-7198 (CVSS 9.8), involves improper access control in OData Web Services, allowing unauthorized users to bypass security restrictions in versions 15.4.8623 through 15.4.8629.
Three additional high-severity vulnerabilities were also disclosed:
- CVE-2026-7195 (CVSS 8.8): Improper input validation in OData Web Services (versions 14.1–15.4).
- CVE-2026-7201 (CVSS 8.8): Authorization bypass via user-controlled keys in OData Web Services (versions 15.2–15.4).
- CVE-2026-7313 (CVSS 8.7): Insufficiently protected credentials in legacy ServiceStack Web Services (versions 8.0–13.3).
Exploitation of these flaws could enable attackers to deploy malicious payloads, exfiltrate sensitive data, or pivot into internal networks, given Sitefinity’s role as a central hub for enterprise web infrastructure. The vulnerabilities affect all supported Microsoft SQL Server databases and OS environments running impacted versions.
Progress Software has released version-specific patches to mitigate the risks. Organizations on supported branches must apply the following updates:
- 15.4 → 15.4.8630
- 15.3 → 15.3.8531
- 15.2 → 15.2.8441
- 15.1 → 15.1.8335
- 15.0 → 15.0.8234
- 14.4 → 14.4.8152
- 13.3 → 13.3.7652
Unsupported versions require an upgrade to the latest release (15.4.8631). Sitefinity Cloud customers and on-premise administrators can access patches via the Progress Knowledge Base. Security teams are advised to monitor logs for anomalous OData API requests or unexpected administrative access as potential indicators of exploitation.
Source: https://cyberpress.org/sitefinity-flaws-expose-credentials/
Progress Software TPRM report: https://www.rankiteo.com/company/progress-software
"id": "pro1780921490",
"linkid": "progress-software",
"type": "Vulnerability",
"date": "6/2026",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'customers_affected': 'Organizations using Sitefinity '
'CMS versions 8.0–15.4',
'industry': 'Technology, Web Infrastructure',
'location': 'Global',
'name': 'Progress Software (Sitefinity CMS/Sitefinity '
'Insight users)',
'size': 'Enterprises',
'type': 'Software Vendor/Enterprise Users'}],
'attack_vector': 'Remote Exploitation',
'customer_advisories': 'Sitefinity Cloud customers and on-premise '
'administrators notified via Progress Knowledge Base',
'data_breach': {'data_exfiltration': 'Potential (if exploited)',
'sensitivity_of_data': 'High (plaintext credentials, '
'administrative access)',
'type_of_data_compromised': 'Credentials, sensitive data'},
'date_detected': '2026-05',
'date_publicly_disclosed': '2026-05',
'description': 'In May 2026, Progress Software issued a critical security '
'advisory for Sitefinity CMS and Sitefinity Insight, warning '
'of five severe vulnerabilities that could allow threat actors '
'to steal credentials, bypass authentication, and gain '
'unauthorized access to enterprise environments. The flaws '
'primarily affect the OData and ServiceStack Web Services '
'components, posing significant risks to organizations relying '
'on the platform for web infrastructure.',
'impact': {'data_compromised': 'Credentials, sensitive data',
'identity_theft_risk': 'High (plaintext credential exposure)',
'operational_impact': 'Unauthorized access, potential pivot into '
'internal networks',
'systems_affected': 'Sitefinity CMS and Sitefinity Insight '
'(versions 8.0–15.4)'},
'investigation_status': 'Ongoing (patches released)',
'post_incident_analysis': {'corrective_actions': 'Patches released to address '
'vulnerabilities in OData '
'and ServiceStack Web '
'Services',
'root_causes': 'Insufficiently protected '
'credentials, improper access '
'control, improper input '
'validation'},
'recommendations': ['Apply patches immediately for supported versions',
'Upgrade unsupported versions to the latest release',
'Monitor logs for signs of exploitation',
'Review access controls for OData and ServiceStack Web '
'Services'],
'references': [{'source': 'Progress Software Security Advisory',
'url': 'https://knowledge.progress.com'}],
'response': {'communication_strategy': 'Security advisory issued via Progress '
'Knowledge Base',
'containment_measures': 'Version-specific patches released',
'enhanced_monitoring': 'Monitor for anomalous OData API requests '
'or unexpected administrative access',
'remediation_measures': ['Apply patches (e.g., 15.4 → 15.4.8630)',
'Upgrade unsupported versions to '
'15.4.8631',
'Monitor logs for anomalous OData API '
'requests']},
'stakeholder_advisories': 'Security teams advised to monitor for exploitation '
'indicators',
'title': 'Critical Sitefinity CMS Vulnerabilities Expose Enterprises to '
'Credential Theft and Unauthorized Access',
'type': 'Vulnerability Exploitation',
'vulnerability_exploited': ['CVE-2026-7312 (CVSS 10.0)',
'CVE-2026-7198 (CVSS 9.8)',
'CVE-2026-7195 (CVSS 8.8)',
'CVE-2026-7201 (CVSS 8.8)',
'CVE-2026-7313 (CVSS 8.7)']}