CVE-2017-8384 Craft CMS XSS Vulnerability
Cross-site scripting vulnerability in Craft CMS allows attackers to inject malicious scripts via crafted HTTP requests.
- 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
- Available
What is CVE-2017-8384?
CVE-2017-8384 is a medium-severity cross-site scripting vulnerability in Craftcms Craft Cms, published on 1 May 2017. 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
Craft CMS before 2.6.2976 allows XSS attacks because an array returned by HttpRequestService::getSegments() and getActionSegments() need not be zero-based. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-8052.
Weakness: CWE-79
Which versions are affected by CVE-2017-8384?
2 open source packages ship an affected version, including craftcms/cms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
craftcms/cms Packagist | All versions | 2.6.2976 |
craftcms/cms Packagist | All versions | 2.6.2976 |
Products include Craftcms Craft Cms.
How do I fix CVE-2017-8384?
Upgrade craftcms/cms to 2.6.2976 or later.
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-2017-8384 being exploited?
There is no known exploitation of CVE-2017-8384 in the wild and no public exploit code.
Other vulnerabilities in Craftcms Craft Cms
Sources
Also known as GHSA-9mcw-mwxv-grwj.