What is CVE-2017-18095?

CVE-2017-18095 is a medium-severity vulnerability in Atlassian Crucible, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2018-02-19.

How severe is CVE-2017-18095?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Atlassian Crucible

CVE-2017-18095

The SnippetRPCServiceImpl class in Atlassian Crucible before version 4.5.1 (the fixed version 4.5.x) and before 4.6.0 allows remote attackers to comment on snippets they do not have authorization to access via an improper authorization vulnerability.

Vulnerability class: Broken Access Control

Published 2018-02-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (62.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Atlassian Crucible — versions prior to 4.6.0, prior to 4.5.1

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

www.securityfocus.com/bid/103207 (VDB Entry, Third Party Advisory, vdb-entry)
jira.atlassian.com/browse/CRUC-8178 (Vendor Advisory)

Frequently asked questions

What is CVE-2017-18095?: CVE-2017-18095 is a medium-severity vulnerability in Atlassian Crucible, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2018-02-19.
How severe is CVE-2017-18095?: Medium severity. CVSS v3 base score is 5.3 out of 10.