CVE-2018-5230 Cross-site scripting in Jira

Medium 6.1 Published Updated

Remote attackers can inject arbitrary HTML or JavaScript via XSS in Jira's issue collector error messages, potentially leading to session hijacking or malicious actions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-5230?

CVE-2018-5230 is a medium-severity cross-site scripting vulnerability in Atlassian Jira, published on 14 May 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The issue collector in Atlassian Jira before version 7.6.6, from version 7.7.0 before version 7.7.4, from version 7.8.0 before version 7.8.4 and from version 7.9.0 before version 7.9.2 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the error message of custom fields when an invalid value is specified.

Weakness: CWE-79

Which versions are affected by CVE-2018-5230?

It affects 2 products.

Products include Atlassian Jira, Atlassian Jira Server.

How do I fix CVE-2018-5230?

No fix has been published for CVE-2018-5230 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2018-5230 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-5230 exists.

Public exploit code: 1 Nuclei template.

All Atlassian Jira vulnerabilities

Sources

Also known as GHSA-7cw6-37m4-4r8g.

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