CVE-2017-18084 Cross-site scripting in Confluence
Remote attackers can inject arbitrary HTML or JavaScript via macro descriptions in Atlassian Confluence Server, potentially leading to session hijacking or malicious actions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-18084?
CVE-2017-18084 is a medium-severity cross-site scripting vulnerability in Atlassian Confluence, published on 2 Feb 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The usermacros resource in Atlassian Confluence Server before version 6.3.4 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability through the description of a macro.
Weakness: CWE-79
Which versions are affected by CVE-2017-18084?
It affects 1 product.
Products include Atlassian Confluence.
How do I fix CVE-2017-18084?
No fix has been published for CVE-2017-18084 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-2017-18084 being exploited?
There is no known exploitation of CVE-2017-18084 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Confluence
Sources
Also known as GHSA-4hx9-3q25-6fgc.