Improper access control vulnerability in SYNO.Cal.EventBase in Synology Calendar before 2.0.1-0242 allows remote authenticated users to modify calendar event via unspecified vectors.
Published 2017-12-08 16:29:00
Updated 2019-10-09 23:24:33
Source Synology Inc.
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Exploit prediction scoring system (EPSS) score for CVE-2017-15891

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 19 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-15891

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.0
MEDIUM AV:N/AC:L/Au:S/C:N/I:P/A:N
8.0
2.9
NIST
6.5
MEDIUM CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
2.8
3.6
NIST

CWE ids for CVE-2017-15891

  • The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
    Assigned by: security@synology.com (Secondary)

References for CVE-2017-15891

Products affected by CVE-2017-15891

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