CVE-2018-20827 : The activity stream gadget in Jira before version 7.13.1 allows remote attackers

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.

Published 2019-08-09 20:15:11

Updated 2019-08-13 20:35:36

Source Atlassian

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2018-20827

Atlassian » Jira
Versions from including (>=) 7.0.0 and before (<) 7.13.1
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2018-20827

Top countries where our scanners detected CVE-2018-20827

Top open port discovered on systems with this issue 80

IPs affected by CVE-2018-20827 3,640

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2018-20827!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2018-20827

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 30 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-20827

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
3.5	LOW	AV:N/AC:M/Au:S/C:N/I:P/A:N	6.8	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.4	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	2.3	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2018-20827

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-20827

https://jira.atlassian.com/browse/JRASERVER-69237

[JRASERVER-69237] XSS in the activity stream gadget via the country parameter - CVE-2018-20827 - Create and track feature requests for Atlassian products.
Exploit;Issue Tracking;Vendor Advisory