CVE-2021-23445 Cross-site Scripting (XSS)
An attacker can execute arbitrary scripts via unescaped array inputs in the HTML escape function of the datatables.net library.
- 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-2021-23445?
CVE-2021-23445 is a low-severity cross-site scripting vulnerability in datatables.net, published on 27 Sep 2021. 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
This affects the package datatables.net before 1.11.3. If an array is passed to the HTML escape entities function it would not have its contents escaped.
Weakness: CWE-79
Which versions are affected by CVE-2021-23445?
2 open source packages ship an affected version, including datatables.net. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
datatables.net npm | All versions | 1.11.3 |
datatables.net npm | All versions | 1.11.3 |
Products include Datatables Datatables.net.
How do I fix CVE-2021-23445?
Upgrade datatables.net to 1.11.3 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-2021-23445 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-23445 exists.
Other vulnerabilities in datatables.net
Sources
Also known as AZL-66567, DEBIAN-CVE-2021-23445, DLA-3529-1, GHSA-h73q-5wmj-q8pj, UBUNTU-CVE-2021-23445.