CVE-2018-20827
CVE-2018-20827 is a medium-severity vulnerability in Atlassian Jira 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% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Atlassian Jira
- Published:
- Last modified:
Description
The activity stream gadget in Jira before version 7.13.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the country parameter.
Frequently asked questions
- What is CVE-2018-20827?
- The activity stream gadget in Jira before version 7.13.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the country parameter.
- How severe is CVE-2018-20827?
- CVE-2018-20827 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-2018-20827 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-20827?
- CVE-2018-20827 affects Atlassian Jira. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-20827?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-20827 published?
- CVE-2018-20827 was published on 2019-08-09 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
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