CVE-2021-43853: AjaxNetProfessional deserializes arbitrary JavaScript objects

CVE-2021-43853 · Severity: low · CVSS 3.1 · Published 2022-01-06

AjaxNetProfessional deserializes arbitrary JavaScript objects

Technologies: AjaxNetProfessional (NuGet). Vendors: NuGet.

Quick answers

Is CVE-2021-43853 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-43853 being exploited in the wild.
How severe is CVE-2021-43853?
Low severity, with a CVSS score of 3.1, published 6 January 2022.
Which products and versions are affected?
AjaxNetProfessional (NuGet) ECOSYSTEM:introduced=0,fixed=21.12.22.1.
Is there a fix for CVE-2021-43853?
Yes. AjaxNetProfessional (NuGet): upgrade to 21.12.22.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-43853?
Check whether you run AjaxNetProfessional (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • AjaxNetProfessional (NuGet): upgrade to 21.12.22.1 or later
    dotnet add package AjaxNetProfessional --version 21.12.22.1

Affected products

  • AjaxNetProfessional (NuGet) ECOSYSTEM:introduced=0,fixed=21.12.22.1

Identifiers

  • CVE-2021-43853
  • GHSA-5q7q-qqw2-hjq7

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.