CVE-2020-9440 Cross-site scripting in n/a
Remote attackers can execute arbitrary web script in CKEditor 4 via the WSC plugin by injecting crafted HTML elements.
- 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-2020-9440?
CVE-2020-9440 is a medium-severity cross-site scripting vulnerability in Fedoraproject Fedora, published on 10 Mar 2020. 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
A cross-site scripting (XSS) vulnerability in the WSC plugin through 5.5.7.5 for CKEditor 4 allows remote attackers to run arbitrary web script inside an IFRAME element by injecting a crafted HTML element into the editor.
Weakness: CWE-79
Which versions are affected by CVE-2020-9440?
It affects 3 products.
Products include Ckeditor Ckeditor, Fedoraproject Fedora, Webspellchecker Webspellchecker.
How do I fix CVE-2020-9440?
No fix has been published for CVE-2020-9440 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-2020-9440 being exploited?
There is no known exploitation of CVE-2020-9440 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
- CVE-2023-31541 File upload in n/a
- CVE-2021-41164 Advanced Content Filter (ACF) vulnerability allowing to execute JavaScript code using malformed HTML
- CVE-2021-41165 HTML comments vulnerability allowing to execute JavaScript code
- CVE-2021-32808 Cross-site scripting in ckeditor via abuse of undo functionality
- CVE-2011-4972 Missing authorization in CKEditor Drupal module
Sources
Also known as GHSA-pv45-3557-fx76, UBUNTU-CVE-2020-9440.