Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
3 results
Dec 4, 2023Ajax.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 metCVE-2023-49289 · Other software · michaelschwarz · reported by GitHubMedium 6.3
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.
- Product
- Ajax.NET-Professional
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 22, 2021Ajax.NET Professional (AjaxPro) is an AJAX framework available for Microsoft ASP.NET.CVE-2021-43853 · Other software · michaelschwarz · reported by GitHubHigh 8.7
Ajax.NET Professional (AjaxPro) is an AJAX framework available for Microsoft ASP.NET. Affected versions of this package are vulnerable to JavaScript object injection which may result in cross site scripting when leveraged by a malicious user. The affected core relates to JavaScript object creation when parsing json input. Releases before version 21.12.22.1 are affected. A workaround exists that replaces one of the core JavaScript files embedded in the library. See the GHSA-5q7q-qqw2-hjq7 for workaround details.
- Product
- Ajax.NET-Professional
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 3, 2021Ajax.NET Professional Deserialization of Untrusted Data VulnerabilityCVE-2021-23758 · Other software · Ajax.NET Professional · reported by report@snyk.ioExploitedHigh 8.1
Ajax.NET Professional (AjaxPro) contains a deserialization of untrusted data vulnerability that could allow for remote code execution via arbitrary .NET classes. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.
- Product
- Ajax.NET Professional
- On CISA’s list since
- Aug 26, 2026 (federal fix deadline Sep 9, 2026)
- What to do
- Attackers are using this now. Install Ajax.NET Professional’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogpacketstormsecurity.comgithub.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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