CVE-2018-20827 Cross-site scripting in Jira
Remote attackers can inject arbitrary HTML or JavaScript via the country parameter in the activity stream gadget, potentially leading to session hijacking or malicious actions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-20827?
CVE-2018-20827 is a medium-severity cross-site scripting vulnerability in Atlassian Jira, published on 9 Aug 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2018-20827?
It affects 1 product.
Products include Atlassian Jira.
How do I fix CVE-2018-20827?
No fix has been published for CVE-2018-20827 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-2018-20827 being exploited?
There is no known exploitation of CVE-2018-20827 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Jira
Sources
Also known as GHSA-ccfj-r436-q2hv.