CVE-2017-15883

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.

Published: 2018-01-08 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-15883 is rated Moderate Risk (51.9/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.15%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-15883

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-07-05 0.15% 0.15% -0.01%
2 2025-07-01 0.15% 0.15% +0.01%
3 2025-06-26 — 0.15% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-15883

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2017-15883

Affected software / configurations for CVE-2017-15883

Vendor Product Version Raw CPE
progress sitefinity 5.1 cpe:2.3:a:progress:sitefinity:5.1:*:*:*:*:*:*:*
progress sitefinity 5.2 cpe:2.3:a:progress:sitefinity:5.2:*:*:*:*:*:*:*
progress sitefinity 5.3 cpe:2.3:a:progress:sitefinity:5.3:*:*:*:*:*:*:*
progress sitefinity 5.4 cpe:2.3:a:progress:sitefinity:5.4:*:*:*:*:*:*:*
progress sitefinity 6.0 cpe:2.3:a:progress:sitefinity:6.0:*:*:*:*:*:*:*
progress sitefinity 6.1 cpe:2.3:a:progress:sitefinity:6.1:*:*:*:*:*:*:*
progress sitefinity 6.2 cpe:2.3:a:progress:sitefinity:6.2:*:*:*:*:*:*:*
progress sitefinity 6.3 cpe:2.3:a:progress:sitefinity:6.3:*:*:*:*:*:*:*
progress sitefinity 7.0 cpe:2.3:a:progress:sitefinity:7.0:*:*:*:*:*:*:*
progress sitefinity 7.1 cpe:2.3:a:progress:sitefinity:7.1:*:*:*:*:*:*:*
progress sitefinity 7.2 cpe:2.3:a:progress:sitefinity:7.2:*:*:*:*:*:*:*
progress sitefinity 7.3 cpe:2.3:a:progress:sitefinity:7.3:*:*:*:*:*:*:*
progress sitefinity 8.0 cpe:2.3:a:progress:sitefinity:8.0:*:*:*:*:*:*:*
progress sitefinity 8.1 cpe:2.3:a:progress:sitefinity:8.1:*:*:*:*:*:*:*
progress sitefinity 8.2 cpe:2.3:a:progress:sitefinity:8.2:*:*:*:*:*:*:*
progress sitefinity 9.0 cpe:2.3:a:progress:sitefinity:9.0:*:*:*:*:*:*:*
progress sitefinity 9.1 cpe:2.3:a:progress:sitefinity:9.1:*:*:*:*:*:*:*
progress sitefinity 9.2 cpe:2.3:a:progress:sitefinity:9.2:*:*:*:*:*:*:*
progress sitefinity 10.0 cpe:2.3:a:progress:sitefinity:10.0:*:*:*:*:*:*:*
progress sitefinity 10.1 cpe:2.3:a:progress:sitefinity:10.1:*:*:*:*:*:*:*

References for CVE-2017-15883

cvelogic Threat Intelligence