How severe is CVE-2017-18107?

CVE-2017-18107 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2017-18107 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18107?

CVE-2017-18107 affects Atlassian Crowd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18107?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-18107 published?

CVE-2017-18107 was published on 2019-12-17 and last updated on 2026-06-17.

CVE-2017-18107

CVE-2017-18107 is a medium-severity vulnerability in Atlassian Crowd with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Atlassian Crowd
Published: 2019-12-17
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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. Please be aware that the Demo application is not enabled by default.
How severe is CVE-2017-18107?: CVE-2017-18107 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2017-18107 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18107?: CVE-2017-18107 affects Atlassian Crowd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18107?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18107 published?: CVE-2017-18107 was published on 2019-12-17 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*

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