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Vulnerability record · CVE-2017-15883 · published 8 January 2018

CVE-2017-15883: Progress sitefinity improper authentication vulnerability

Progress · Sitefinity

Sitefinity 5.1, 5.2, 5.3, 5.4, 6.x, 7.x, 8.x, 9.x, and 10.x allow remote attackers to bypass authentication and consequently cause a denial of service on load balanced sites or gain privileges via vectors related to weak cryptography.

9.8 CVSS 3.0 Critical EPSS 1.9% · top 21.2% CWE-287 · Improper authentication
9.8CVSS 3.0 base score, v2 7.5
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Sitefinity 5.1, 5.2, 5.3, 5.4, 6.x, 7.x, 8.x, 9.x, and 10.x allow remote attackers to bypass authentication and consequently cause a denial of service on load balanced sites or gain privileges via vectors related to weak cryptography.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://knowledgebase.progress.com/articles/Article/Sitefinity-Security-Advisory-for-cryptographic-vulnerability-CVE-201 Vendor Advisory
https://www.mnemonic.no/news/2017/vulnerability-finding-sitefinity-cms/ Third Party Advisory
https://knowledgebase.progress.com/articles/Article/Sitefinity-Security-Advisory-for-cryptographic-vulnerability-CVE-201 Vendor Advisory
https://www.mnemonic.no/news/2017/vulnerability-finding-sitefinity-cms/ Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-9248Telerik UI for ASP.NET AJAX and Sitefinity cryptographic key protection flawTelerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX (before R2 2017 SP1) and Sitefinity (before 10.0.6412.0) fails to properly protect the Tel…KEVEPSS 75%analysed9.8CVE-2026-7198Progress sitefinity improper access control vulnerabilityCWE-284: Improper Access Control in web services in Progress Sitefinity 15.4.8623 before 15.4.8630 allows a remote unauthenticated attacker to access…EPSS 0.65%9.8CVE-2023-29375Progress sitefinity unrestricted file upload vulnerabilityAn issue was discovered in Progress Sitefinity 13.3 before 13.3.7647, 14.0 before 14.0.7736, 14.1 before 14.1.7826, 14.2 before 14.2.7930, and 14.3 b…EPSS 0.82%9.8CVE-2019-17392Progress sitefinity weak password recovery vulnerabilityProgress Sitefinity 12.1 has a Weak Password Recovery Mechanism for a Forgotten Password because the HTTP Host header is mishandled.EPSS 1.1%8.8CVE-2026-7201Progress sitefinity insecure direct object reference vulnerabilityCWE-639: Authorization Bypass Through User-Controlled Key in web services in Progress Sitefinity 15.2.x before 15.2.8441, 15.3.x before 15.3.8531, an…EPSS 0.55%8.8CVE-2017-18179Progress sitefinity improper authentication vulnerabilityProgress Sitefinity 9.1 uses wrap_access_token as a non-expiring authentication token that remains valid after a password change or a session termina…EPSS 2.8%8.1CVE-2026-7195Progress sitefinity improper input validation vulnerabilityCWE-20: Improper Input Validation in web services in Progress Sitefinity 14.1.x through 14.3.x, 14.4.x before 14.4.8152, 15.0.x before 15.0.8234, 15.…EPSS 0.62%8.1CVE-2024-11627Progress sitefinity insufficient session expiration vulnerability: Insufficient Session Expiration vulnerability in Progress Sitefinity allows : Session Fixation.This issue affects Sitefinity: from 4.0 through 14.4…EPSS 0.33%

Source: NIST National Vulnerability Database (record CVE-2017-15883), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.