Common Weakness Enumeration

CWE-502

Allowed

Deserialization of Untrusted Data

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

4830 vulnerabilities reference this CWE, most recent first.

CVE-2025-6811 (GCVE-0-2025-6811)

Vulnerability from cvelistv5 – Published: 2025-07-07 14:52 – Updated: 2025-07-07 15:01
VLAI
Title
Mescius ActiveReports.NET TypeResolutionService Deserialization of Untrusted Data Remote Code Execution Vulnerability
Summary
Mescius ActiveReports.NET TypeResolutionService Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Mescius ActiveReports.NET. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the TypeResolutionService class. 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 execute code in the context of the current process. Was ZDI-CAN-25397.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
zdi
References
Impacted products
Date Public
2025-06-27 22:41
Show details on NVD website
To clipboard 

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CVE-2025-6810 (GCVE-0-2025-6810)

Vulnerability from cvelistv5 – Published: 2025-07-07 14:51 – Updated: 2025-07-07 15:04
VLAI
Title
Mescius ActiveReports.NET ReadValue Deserialization of Untrusted Data Remote Code Execution Vulnerability
Summary
Mescius ActiveReports.NET ReadValue Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Mescius ActiveReports.NET. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the implementation of the ReadValue method. 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 execute code in the context of the current process. Was ZDI-CAN-25246.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
zdi
References
Impacted products
Date Public
2025-06-27 22:40
Show details on NVD website
To clipboard 

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CVE-2025-6742 (GCVE-0-2025-6742)

Vulnerability from cvelistv5 – Published: 2025-07-09 05:23 – Updated: 2025-07-09 14:14
VLAI
Title
SureForms – Drag and Drop Form Builder for WordPress <= 1.7.3 - Unauthenticated PHP Object Injection (PHAR) Triggered via Admin Submission Deletion
Summary
The SureForms – Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.7.3 via the use of file_exists() in the delete_entry_files() function without restriction on the path provided. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
brainstormforce SureForms – Drag and Drop Form Builder for WordPress Affected: 0.0 , ≤ 0.0.13 (semver)
Affected: 1.0 , ≤ 1.0.6 (semver)
Affected: 1.1 , ≤ 1.1.1 (semver)
Affected: 1.2 , ≤ 1.2.4 (semver)
Affected: 1.3 , ≤ 1.3.1 (semver)
Affected: 1.4 , ≤ 1.4.4 (semver)
Affected: 1.5
Affected: 1.6 , ≤ 1.6.4 (semver)
Affected: 1.7 , ≤ 1.7.3 (semver)
Create a notification for this product.
Credits
Nguyen Tan Phat
Show details on NVD website
To clipboard 

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CVE-2025-6544 (GCVE-0-2025-6544)

Vulnerability from cvelistv5 – Published: 2025-09-21 09:00 – Updated: 2025-09-22 17:23
VLAI
Title
Deserialization Vulnerability in h2oai/h2o-3
Summary
A deserialization vulnerability exists in h2oai/h2o-3 versions <= 3.46.0.8, allowing attackers to read arbitrary system files and execute arbitrary code. The vulnerability arises from improper handling of JDBC connection parameters, which can be exploited by bypassing regular expression checks and using double URL encoding. This issue impacts all users of the affected versions.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
h2oai h2oai/h2o-3 Affected: unspecified , < 3.46.8 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-6507 (GCVE-0-2025-6507)

Vulnerability from cvelistv5 – Published: 2025-09-01 05:10 – Updated: 2025-09-02 19:29
VLAI
Title
Deserialization of Untrusted Data in h2oai/h2o-3
Summary
A vulnerability in the h2oai/h2o-3 repository allows attackers to exploit deserialization of untrusted data, potentially leading to arbitrary code execution and reading of system files. This issue affects the latest master branch version 3.47.0.99999. The vulnerability arises from the ability to bypass regular expression filters intended to prevent malicious parameter injection in JDBC connections. Attackers can manipulate spaces between parameters to evade detection, allowing for unauthorized file access and code execution. The vulnerability is addressed in version 3.46.0.8.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
h2oai h2oai/h2o-3 Affected: unspecified , < 3.46.0.8 (custom)
Create a notification for this product.
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CVE-2025-6464 (GCVE-0-2025-6464)

Vulnerability from cvelistv5 – Published: 2025-07-02 05:29 – Updated: 2026-04-08 16:58
VLAI
Title
Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.44.2 - Unauthenticated PHP Object Injection (PHAR) Triggered via Administrator Form Submission Deletion
Summary
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.44.2 via deserialization of untrusted input in the 'entry_delete_upload_files' function. This makes it possible for unauthenticated attackers to inject a PHP Object through a PHAR file. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. Deserialization occurs when the form submission is deleted, whether by an Administrator or via auto-deletion determined by plugin settings.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Credits
Nguyen Tan Phat
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CVE-2025-6279 (GCVE-0-2025-6279)

Vulnerability from cvelistv5 – Published: 2025-06-19 21:00 – Updated: 2025-06-23 19:30
VLAI
Title
Upsonic Pickle add_tool cloudpickle.loads deserialization
Summary
A vulnerability, which was classified as critical, has been found in Upsonic up to 0.55.6. This issue affects the function cloudpickle.loads of the file /tools/add_tool of the component Pickle Handler. The manipulation leads to deserialization. The exploit has been disclosed to the public and may be used.
Severity
5.1 (Medium)
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.5 (Medium)
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.313283 vdb-entrytechnical-description
https://vuldb.com/?ctiid.313283 signaturepermissions-required
https://vuldb.com/?submit.593099 third-party-advisory
https://github.com/Upsonic/Upsonic/issues/353 exploitissue-tracking
Impacted products
Vendor Product Version
n/a Upsonic Affected: 0.55.0
Affected: 0.55.1
Affected: 0.55.2
Affected: 0.55.3
Affected: 0.55.4
Affected: 0.55.5
Affected: 0.55.6
Show details on NVD website
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CVE-2025-5680 (GCVE-0-2025-5680)

Vulnerability from cvelistv5 – Published: 2025-06-05 19:31 – Updated: 2025-06-05 19:53
VLAI
Title
Shenzhen Dashi Tongzhou Information Technology AgileBPM Groovy Script SysScriptController.java executeScript deserialization
Summary
A vulnerability classified as critical was found in Shenzhen Dashi Tongzhou Information Technology AgileBPM up to 2.5.0. Affected by this vulnerability is the function executeScript of the file /src/main/java/com/dstz/sys/rest/controller/SysScriptController.java of the component Groovy Script Handler. The manipulation of the argument script leads to deserialization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.311167 vdb-entrytechnical-description
https://vuldb.com/?ctiid.311167 signaturepermissions-required
https://vuldb.com/?submit.585108 third-party-advisory
https://gitee.com/agile-bpm/agile-bpm-basic/issue… exploitissue-tracking
Impacted products
Vendor Product Version
Shenzhen Dashi Tongzhou Information Technology AgileBPM Affected: 2.0
Affected: 2.1
Affected: 2.2
Affected: 2.3
Affected: 2.4
Affected: 2.5.0
Create a notification for this product.
Credits
VulDB Gitee Analyzer
Show details on NVD website
To clipboard 

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CVE-2025-5679 (GCVE-0-2025-5679)

Vulnerability from cvelistv5 – Published: 2025-06-05 19:00 – Updated: 2025-06-05 19:14
VLAI
Title
Shenzhen Dashi Tongzhou Information Technology AgileBPM SysToolsController.java parseStrByFreeMarker deserialization
Summary
A vulnerability classified as critical has been found in Shenzhen Dashi Tongzhou Information Technology AgileBPM up to 2.5.0. Affected is the function parseStrByFreeMarker of the file /src/main/java/com/dstz/sys/rest/controller/SysToolsController.java. The manipulation of the argument str leads to deserialization. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.311166 vdb-entrytechnical-description
https://vuldb.com/?ctiid.311166 signaturepermissions-required
https://vuldb.com/?submit.585127 third-party-advisory
https://gitee.com/agile-bpm/agile-bpm-basic/issue… exploitissue-tracking
Impacted products
Vendor Product Version
Shenzhen Dashi Tongzhou Information Technology AgileBPM Affected: 2.0
Affected: 2.1
Affected: 2.2
Affected: 2.3
Affected: 2.4
Affected: 2.5.0
Create a notification for this product.
Credits
VulDB Gitee Analyzer
Show details on NVD website
To clipboard 

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CVE-2025-5662 (GCVE-0-2025-5662)

Vulnerability from cvelistv5 – Published: 2025-09-02 11:14 – Updated: 2025-09-02 15:50
VLAI
Title
Deserialization Vulnerability in h2oai/h2o-3
Summary
A deserialization vulnerability exists in the H2O-3 REST API (POST /99/ImportSQLTable) that affects all versions up to 3.46.0.7. This vulnerability allows remote code execution (RCE) due to improper validation of JDBC connection parameters when using a Key-Value format. The vulnerability is present in the MySQL JDBC Driver version 8.0.19 and JDK version 8u112. The issue is resolved in version 3.46.0.8.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
h2oai h2oai/h2o-3 Affected: unspecified , < 3.46.0.8 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design Implementation

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
Implementation

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
Implementation

Explicitly define a final object() to prevent deserialization.

Mitigation
Architecture and Design Implementation
  • 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
Implementation

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
Architecture and Design Implementation

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
Operation

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.

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