CVE-2023-49289 Cross-site Scripting in Ajax.NET Professional
Cross-site scripting vulnerability in Ajax.NET Professional allows attackers to execute arbitrary scripts in user browsers.
- 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-2023-49289?
CVE-2023-49289 is a medium-severity cross-site scripting vulnerability in michaelschwarz Ajax.NET-Professional, published on 4 Dec 2023. 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
Ajax.NET Professional (AjaxPro) is an AJAX framework for Microsoft ASP.NET which will create proxy JavaScript classes that are used on client-side to invoke methods on the web server. Affected versions of this package are vulnerable cross site scripting attacks. Releases before version 21.12.22.1 are affected. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness: CWE-79
Which versions are affected by CVE-2023-49289?
2 open source packages ship an affected version, including AjaxNetProfessional. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
AjaxNetProfessional NuGet | All versions | 21.12.22.1 |
AjaxNetProfessional NuGet | All versions | 21.12.22.1 |
Products include Michaelschwarz Ajax.net Professional.
How do I fix CVE-2023-49289?
Upgrade AjaxNetProfessional to 21.12.22.1 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-2023-49289 being exploited?
There is no known exploitation of CVE-2023-49289 in the wild and no public exploit code.
Sources
Also known as GHSA-8v6j-gc74-fmpp.