CVE-2017-18107 — Various resources in the Crowd Demo application of Atlassian Crowd before version 3.1.1 allow remote attackers to modify add, modify and delete users & groups via a Cross-site request forgery (CSRF) vulnerability

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MEDIUM

Various resources in the Crowd Demo application of Atlassian Crowd before version 3.1.1 allow remote attackers to modify add, modify and delete users & groups via a Cross-site request forgery (CSRF) vulnerability

Published Dec 17, 2019

6.5

MEDIUM

CVSS 3.1

EPSS 0.45%

Description

Various resources in the Crowd Demo application of Atlassian Crowd before version 3.1.1 allow remote attackers to modify add, modify and delete users & groups via a Cross-site request forgery (CSRF) vulnerability. Please be aware that the Demo application is not enabled by default.

Affected products

Vendor Atlassian Product Crowd Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <3.1.1

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Atlassian

Crowd

n/a

Version	Status	Constraints
unspecified	affected	<3.1.1

Remediation

No remediation recorded yet.

Metrics

0.45% 0.00449

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00449

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.45% (0.00449)	36.70th	v5 (v2026.06.15)
Sep 20, 2026	0.45% (0.00449)	38.39th	v5 (v2026.06.15)
Jul 20, 2024	0.07% (0.00075)	32.83th	v3 (v2023.03.01)
Jun 14, 2024	0.07% (0.00075)	32.45th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00075)	30.43th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)
Feb 3, 2022	0.52% (0.00523)	12.55th	v5 (v2026.06.15)
Apr 14, 2021	0.52% (0.00523)	0.00th	v1

Weaknesses (1)

CWE-352

CSRF

References (1)

https://jira.atlassian.com/browse/CWD-5091
x_refsource_MISCVendor Advisory

Link	Providers	Tags
https://jira.atlassian.com/browse/CWD-5091		x_refsource_MISCVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner atlassian

Published Dec 17, 2019

Updated Sep 16, 2024

Reserved Feb 1, 2018

Link CVE-2017-18107

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2017-18107

Red Hat

Severity n/a

Public date n/a

Links CVE-2017-18107