CVE-2018-11093 Cross-Site Scripting in @ckeditor/ckeditor5-link
Remote attackers can inject arbitrary web script via crafted link attributes in the CKEditor 5 Link package, potentially compromising user sessions.
- 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-2018-11093?
CVE-2018-11093 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 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
Cross-site scripting (XSS) vulnerability in the Link package for CKEditor 5 before 10.0.1 allows remote attackers to inject arbitrary web script through a crafted href attribute of a link (A) element.
Weakness: CWE-79
Which versions are affected by CVE-2018-11093?
2 open source packages ship an affected version, including @ckeditor/ckeditor5-link. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@ckeditor/ckeditor5-link npm | From 0.3.0 | 10.0.1 |
@ckeditor/ckeditor5-link npm | From 0.3.0 | 10.0.1 |
Products include Ckeditor Ckeditor 5-Link.
How do I fix CVE-2018-11093?
Upgrade @ckeditor/ckeditor5-link to 10.0.1 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-2018-11093 being exploited?
There is no known exploitation of CVE-2018-11093 in the wild and no public exploit code.
Sources
Also known as GHSA-gvpx-9459-w3mj.