9.8
CRITICAL
CVE-2021-23758
AjaxPro.2 Deserialization of Untrusted Data RCE Vulnerability
Description

All versions of package ajaxpro.2 are vulnerable to Deserialization of Untrusted Data due to the possibility of deserialization of arbitrary .NET classes, which can be abused to gain remote code execution.

INFO

Published Date :

Dec. 3, 2021, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:51 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-23758 has a 4 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-23758 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ajaxpro.2_project ajaxpro.2

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 2 years, 3 months ago
0 stars 2 fork 2 watcher
Born at : April 8, 2023, 6:19 a.m. This repo has been linked 928 different CVEs too.

None

Updated: 1 year, 4 months ago
20 stars 3 fork 3 watcher
Born at : Feb. 14, 2023, 6:10 p.m. This repo has been linked 921 different CVEs too.

None

Updated: 2 months, 4 weeks ago
9 stars 1 fork 1 watcher
Born at : June 21, 2022, 7:45 a.m. This repo has been linked 944 different CVEs too.

None

C# ASP.NET CSS JavaScript

Updated: 6 months ago
17 stars 5 fork 5 watcher
Born at : Dec. 15, 2021, 3:40 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-23758 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-23758 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/175677/AjaxPro-Deserialization-Remote-Code-Execution.html
    Added Reference https://github.com/michaelschwarz/Ajax.NET-Professional/commit/b0e63be5f0bb20dfce507cb8a1a9568f6e73de57
    Added Reference https://snyk.io/vuln/SNYK-DOTNET-AJAXPRO2-1925971
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 14, 2023

    Action Type Old Value New Value
    Added Reference Snyk http://packetstormsecurity.com/files/175677/AjaxPro-Deserialization-Remote-Code-Execution.html [No types assigned]
  • Initial Analysis by [email protected]

    Dec. 06, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/michaelschwarz/Ajax.NET-Professional/commit/b0e63be5f0bb20dfce507cb8a1a9568f6e73de57 No Types Assigned https://github.com/michaelschwarz/Ajax.NET-Professional/commit/b0e63be5f0bb20dfce507cb8a1a9568f6e73de57 Patch, Third Party Advisory
    Changed Reference Type https://snyk.io/vuln/SNYK-DOTNET-AJAXPRO2-1925971 No Types Assigned https://snyk.io/vuln/SNYK-DOTNET-AJAXPRO2-1925971 Third Party Advisory
    Added CWE NIST CWE-502
    Added CPE Configuration OR *cpe:2.3:a:ajaxpro.2_project:ajaxpro.2:*:*:*:*:*:.net:*:* versions up to (excluding) 21.10.30.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-23758 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-23758 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

87.78 }} 2.55%

score

0.99423

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
© cvefeed.io
Latest DB Update: Jun. 29, 2025 18:29