How severe is CVE-2017-18102?

CVE-2017-18102 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-18102 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18102?

CVE-2017-18102 affects Atlassian Jira Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18102?

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

When was CVE-2017-18102 published?

CVE-2017-18102 was published on 2018-04-17 and last updated on 2026-06-17.

CVE-2017-18102

CVE-2017-18102 is a medium-severity vulnerability in Atlassian Jira Server with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Atlassian Jira Server
Published: 2018-04-17
Last modified: 2026-06-17

Description

The wiki markup component of atlassian-renderer from version 8.0.0 before version 8.0.22 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in nested wiki markup.

Frequently asked questions

What is CVE-2017-18102?: The wiki markup component of atlassian-renderer from version 8.0.0 before version 8.0.22 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in nested wiki markup.
How severe is CVE-2017-18102?: CVE-2017-18102 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-18102 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18102?: CVE-2017-18102 affects Atlassian Jira Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18102?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18102 published?: CVE-2017-18102 was published on 2018-04-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*

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