CWE-502
AllowedDeserialization of Untrusted Data
Abstraction: Base · Status: Draft
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
5420 vulnerabilities reference this CWE, most recent first.
GHSA-JV65-PF7V-F7P8
Vulnerability from github – Published: 2022-05-24 16:46 – Updated: 2022-07-06 20:03In Hazelcast before 3.11, the cluster join procedure is vulnerable to remote code execution via Java deserialization. If an attacker can reach a listening Hazelcast instance with a crafted JoinRequest, and vulnerable classes exist in the classpath, the attacker can run arbitrary code.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "com.hazelcast:hazelcast"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.11"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2016-10750"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2022-07-06T20:03:09Z",
"nvd_published_at": "2019-05-22T14:29:00Z",
"severity": "HIGH"
},
"details": "In Hazelcast before 3.11, the cluster join procedure is vulnerable to remote code execution via Java deserialization. If an attacker can reach a listening Hazelcast instance with a crafted JoinRequest, and vulnerable classes exist in the classpath, the attacker can run arbitrary code.",
"id": "GHSA-jv65-pf7v-f7p8",
"modified": "2022-07-06T20:03:09Z",
"published": "2022-05-24T16:46:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10750"
},
{
"type": "WEB",
"url": "https://github.com/hazelcast/hazelcast/issues/8024"
},
{
"type": "WEB",
"url": "https://github.com/hazelcast/hazelcast/pull/12230"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Deserialization of Untrusted Data in Hazelcast"
}
GHSA-JV73-VQGV-2MCH
Vulnerability from github – Published: 2025-05-23 15:31 – Updated: 2026-04-01 18:35Deserialization of Untrusted Data vulnerability in BoldThemes Medicare allows Object Injection. This issue affects Medicare: from n/a through 2.1.0.
{
"affected": [],
"aliases": [
"CVE-2025-39499"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-23T13:15:31Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in BoldThemes Medicare allows Object Injection. This issue affects Medicare: from n/a through 2.1.0.",
"id": "GHSA-jv73-vqgv-2mch",
"modified": "2026-04-01T18:35:14Z",
"published": "2025-05-23T15:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39499"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/medicare/vulnerability/wordpress-medicare-theme-2-1-0-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JV8C-R873-24QG
Vulnerability from github – Published: 2022-05-24 17:48 – Updated: 2022-05-24 17:48This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Orion Virtual Infrastructure Monitor 2020.2. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the OneTimeJobSchedulerEventsService WCF service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-11955.
{
"affected": [],
"aliases": [
"CVE-2021-27277"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-22T18:15:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Orion Virtual Infrastructure Monitor 2020.2. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the OneTimeJobSchedulerEventsService WCF service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-11955.",
"id": "GHSA-jv8c-r873-24qg",
"modified": "2022-05-24T17:48:19Z",
"published": "2022-05-24T17:48:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27277"
},
{
"type": "WEB",
"url": "https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#Fixed"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-373"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-JVCX-4H9F-WX33
Vulnerability from github – Published: 2025-06-10 18:32 – Updated: 2025-06-10 18:32Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2025-47166"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-10T17:23:38Z",
"severity": "HIGH"
},
"details": "Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.",
"id": "GHSA-jvcx-4h9f-wx33",
"modified": "2025-06-10T18:32:30Z",
"published": "2025-06-10T18:32:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47166"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47166"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JVGH-F9M8-MH2R
Vulnerability from github – Published: 2023-12-28 12:30 – Updated: 2026-04-28 21:33Deserialization of Untrusted Data vulnerability in GiveWP GiveWP – Donation Plugin and Fundraising Platform.This issue affects GiveWP – Donation Plugin and Fundraising Platform: from n/a through 2.25.3.
{
"affected": [],
"aliases": [
"CVE-2023-32513"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-28T11:15:08Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in GiveWP GiveWP \u2013 Donation Plugin and Fundraising Platform.This issue affects GiveWP \u2013 Donation Plugin and Fundraising Platform: from n/a through 2.25.3.",
"id": "GHSA-jvgh-f9m8-mh2r",
"modified": "2026-04-28T21:33:33Z",
"published": "2023-12-28T12:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32513"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/give/wordpress-give-donation-plugin-plugin-2-25-3-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JVGP-RJ42-QJWW
Vulnerability from github – Published: 2026-09-22 09:31 – Updated: 2026-09-22 09:31The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator later exports form submissions to CSV, allowing unauthenticated attackers to perform PHP Object Injection; if a suitable POP chain is present via another installed plugin or theme, this can lead to actions such as arbitrary file operations or remote code execution.
{
"affected": [],
"aliases": [
"CVE-2026-91827"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-22T07:16:31Z",
"severity": "HIGH"
},
"details": "The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator later exports form submissions to CSV, allowing unauthenticated attackers to perform PHP Object Injection; if a suitable POP chain is present via another installed plugin or theme, this can lead to actions such as arbitrary file operations or remote code execution.",
"id": "GHSA-jvgp-rj42-qjww",
"modified": "2026-09-22T09:31:11Z",
"published": "2026-09-22T09:31:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91827"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/7b279db2-92e0-4122-b5c6-aa12b7b01858"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JVH9-4236-XCVJ
Vulnerability from github – Published: 2025-10-22 15:31 – Updated: 2026-01-20 15:31Deserialization of Untrusted Data vulnerability in CRM Perks Connector for Gravity Forms and Google Sheets wp-gravity-forms-spreadsheets allows Object Injection.This issue affects Connector for Gravity Forms and Google Sheets: from n/a through <= 1.2.6.
{
"affected": [],
"aliases": [
"CVE-2025-60209"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-22T15:15:57Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in CRM Perks Connector for Gravity Forms and Google Sheets wp-gravity-forms-spreadsheets allows Object Injection.This issue affects Connector for Gravity Forms and Google Sheets: from n/a through \u003c= 1.2.6.",
"id": "GHSA-jvh9-4236-xcvj",
"modified": "2026-01-20T15:31:30Z",
"published": "2025-10-22T15:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-60209"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/wp-gravity-forms-spreadsheets/vulnerability/wordpress-connector-for-gravity-forms-and-google-sheets-plugin-1-2-5-php-object-injection-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Plugin/wp-gravity-forms-spreadsheets/vulnerability/wordpress-connector-for-gravity-forms-and-google-sheets-plugin-1-2-5-php-object-injection-vulnerability"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Plugin/wp-gravity-forms-spreadsheets/vulnerability/wordpress-connector-for-gravity-forms-and-google-sheets-plugin-1-2-5-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JW49-Q6GW-45W7
Vulnerability from github – Published: 2022-05-14 02:37 – Updated: 2022-05-14 02:37JetBrains dotPeek before 2018.2 and ReSharper Ultimate before 2018.1.4 allow attackers to execute code by decompiling a compiled .NET object (such as a DLL or EXE file) with a specific file, because of Deserialization of Untrusted Data.
{
"affected": [],
"aliases": [
"CVE-2018-14878"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-13T17:29:00Z",
"severity": "HIGH"
},
"details": "JetBrains dotPeek before 2018.2 and ReSharper Ultimate before 2018.1.4 allow attackers to execute code by decompiling a compiled .NET object (such as a DLL or EXE file) with a specific file, because of Deserialization of Untrusted Data.",
"id": "GHSA-jw49-q6gw-45w7",
"modified": "2022-05-14T02:37:12Z",
"published": "2022-05-14T02:37:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14878"
},
{
"type": "WEB",
"url": "https://blog.jetbrains.com/dotnet/2018/08/02/resharper-ultimate-2018-1-4-rider-2018-1-4-released"
},
{
"type": "WEB",
"url": "https://www.nccgroup.trust/uk/about-us/newsroom-and-events/blogs/2018/august/aspnet-resource-files-resx-and-deserialisation-issues"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JW66-V638-9WC8
Vulnerability from github – Published: 2025-10-08 15:32 – Updated: 2025-10-08 18:30WukongCRM-9.0-JAVA was discovered to contain a fastjson deserialization vulnerability via the /OaExamine/setOaExamine interface.
{
"affected": [],
"aliases": [
"CVE-2025-60828"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-08T14:15:45Z",
"severity": "MODERATE"
},
"details": "WukongCRM-9.0-JAVA was discovered to contain a fastjson deserialization vulnerability via the /OaExamine/setOaExamine interface.",
"id": "GHSA-jw66-v638-9wc8",
"modified": "2025-10-08T18:30:15Z",
"published": "2025-10-08T15:32:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-60828"
},
{
"type": "WEB",
"url": "https://gist.github.com/ChangeYourWay/424478421d6a78d1f87d324cddcbfd59"
},
{
"type": "WEB",
"url": "https://github.com/ChangeYourWay/post/blob/main/WukongCRM-9.0-JAVA.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-JW8F-7679-44JM
Vulnerability from github – Published: 2022-05-24 17:25 – Updated: 2022-05-24 17:25IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. The vulnerability only occurs if an undocumented customization has been applied by an administrator. IBM X-Force ID: 184585.
{
"affected": [],
"aliases": [
"CVE-2020-4589"
],
"database_specific": {
"cwe_ids": [
"CWE-502",
"CWE-74"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-08-13T12:15:00Z",
"severity": "HIGH"
},
"details": "IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. The vulnerability only occurs if an undocumented customization has been applied by an administrator. IBM X-Force ID: 184585.",
"id": "GHSA-jw8f-7679-44jm",
"modified": "2022-05-24T17:25:37Z",
"published": "2022-05-24T17:25:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-4589"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/184585"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6258333"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
Mitigation
When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
Mitigation
Explicitly define a final object() to prevent deserialization.
Mitigation
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Mitigation
Avoid having unnecessary types or gadgets (a sequence of instances and method invocations that can self-execute during the deserialization process, often found in libraries) available that can be leveraged for malicious ends. This limits the potential for unintended or unauthorized types and gadgets to be leveraged by the attacker. Add only acceptable classes to an allowlist. Note: new gadgets are constantly being discovered, so this alone is not a sufficient mitigation.
Mitigation
Employ cryptography of the data or code for protection. However, it's important to note that it would still be client-side security. This is risky because if the client is compromised then the security implemented on the client (the cryptography) can be bypassed.
Mitigation MIT-29
Strategy: Firewall
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
CAPEC-586: Object Injection
An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.