Search
Find a vulnerability
Search criteria
2 vulnerabilities found for ajaxpro.2 by ajaxpro.2_project
CVE-2021-23758 (GCVE-0-2021-23758)
Vulnerability from nvd – Published: 2021-12-03 20:05 – Updated: 2026-08-26 19:58Title
Deserialization of Untrusted Data
Summary
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.
Severity
8.1 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 17:44 UTC
CWE
- Deserialization of Untrusted Data
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
5 references
Impacted products
Date Public
2021-12-03 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T19:14:09.129Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://snyk.io/vuln/SNYK-DOTNET-AJAXPRO2-1925971"
},
{
"tags": [
"x_transferred"
],
"url": "https://github.com/michaelschwarz/Ajax.NET-Professional/commit/b0e63be5f0bb20dfce507cb8a1a9568f6e73de57"
},
{
"tags": [
"x_transferred"
],
"url": "http://packetstormsecurity.com/files/175677/AjaxPro-Deserialization-Remote-Code-Execution.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-23758",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T17:44:04.350622Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2026-08-26",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-23758"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-26T19:58:23.426Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://blog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operations/"
},
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-23758"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-26T00:00:00.000Z",
"value": "CVE-2021-23758 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "AjaxPro.2",
"vendor": "n/a",
"versions": [
{
"lessThan": "unspecified",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Hans-Martin M\u00fcnch (MOGWAI LABS)"
}
],
"datePublic": "2021-12-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Deserialization of Untrusted Data",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-14T03:06:35.776Z",
"orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"shortName": "snyk"
},
"references": [
{
"url": "https://snyk.io/vuln/SNYK-DOTNET-AJAXPRO2-1925971"
},
{
"url": "https://github.com/michaelschwarz/Ajax.NET-Professional/commit/b0e63be5f0bb20dfce507cb8a1a9568f6e73de57"
},
{
"url": "http://packetstormsecurity.com/files/175677/AjaxPro-Deserialization-Remote-Code-Execution.html"
}
],
"title": "Deserialization of Untrusted Data"
}
},
"cveMetadata": {
"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"assignerShortName": "snyk",
"cveId": "CVE-2021-23758",
"datePublished": "2021-12-03T20:05:12.932Z",
"dateReserved": "2021-01-08T00:00:00.000Z",
"dateUpdated": "2026-08-26T19:58:23.426Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2021-23758 (GCVE-0-2021-23758)
Vulnerability from cvelistv5 – Published: 2021-12-03 20:05 – Updated: 2026-08-26 19:58Title
Deserialization of Untrusted Data
Summary
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.
Severity
8.1 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 17:44 UTC
CWE
- Deserialization of Untrusted Data
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
5 references
Impacted products
Date Public
2021-12-03 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T19:14:09.129Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://snyk.io/vuln/SNYK-DOTNET-AJAXPRO2-1925971"
},
{
"tags": [
"x_transferred"
],
"url": "https://github.com/michaelschwarz/Ajax.NET-Professional/commit/b0e63be5f0bb20dfce507cb8a1a9568f6e73de57"
},
{
"tags": [
"x_transferred"
],
"url": "http://packetstormsecurity.com/files/175677/AjaxPro-Deserialization-Remote-Code-Execution.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-23758",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T17:44:04.350622Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2026-08-26",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-23758"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-26T19:58:23.426Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://blog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operations/"
},
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-23758"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-26T00:00:00.000Z",
"value": "CVE-2021-23758 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "AjaxPro.2",
"vendor": "n/a",
"versions": [
{
"lessThan": "unspecified",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Hans-Martin M\u00fcnch (MOGWAI LABS)"
}
],
"datePublic": "2021-12-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Deserialization of Untrusted Data",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-14T03:06:35.776Z",
"orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"shortName": "snyk"
},
"references": [
{
"url": "https://snyk.io/vuln/SNYK-DOTNET-AJAXPRO2-1925971"
},
{
"url": "https://github.com/michaelschwarz/Ajax.NET-Professional/commit/b0e63be5f0bb20dfce507cb8a1a9568f6e73de57"
},
{
"url": "http://packetstormsecurity.com/files/175677/AjaxPro-Deserialization-Remote-Code-Execution.html"
}
],
"title": "Deserialization of Untrusted Data"
}
},
"cveMetadata": {
"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"assignerShortName": "snyk",
"cveId": "CVE-2021-23758",
"datePublished": "2021-12-03T20:05:12.932Z",
"dateReserved": "2021-01-08T00:00:00.000Z",
"dateUpdated": "2026-08-26T19:58:23.426Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}