What is CVE-2018-20827?

CVE-2018-20827 is a medium-severity vulnerability in Atlassian Jira, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-08-09.

How severe is CVE-2018-20827?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Atlassian Jira

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (51.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Atlassian Jira — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@atlassian.com (Exploit, x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2018-20827?: CVE-2018-20827 is a medium-severity vulnerability in Atlassian Jira, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-08-09.
How severe is CVE-2018-20827?: Medium severity. CVSS v3 base score is 5.4 out of 10.