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.

4815 vulnerabilities reference this CWE, most recent first.

CVE-2025-47532 (GCVE-0-2025-47532)

Vulnerability from cvelistv5 – Published: 2025-05-23 12:43 – Updated: 2026-05-12 00:20
VLAI
Title
WordPress CoinPayments.net Payment Gateway for WooCommerce plugin <= 1.0.17 - PHP Object Injection Vulnerability
Summary
Deserialization of Untrusted Data vulnerability in CoinPayments CoinPayments.net Payment Gateway for WooCommerce coinpayments-payment-gateway-for-woocommerce allows Object Injection.This issue affects CoinPayments.net Payment Gateway for WooCommerce: from n/a through <= 1.0.17.
Severity
9.8 (Critical)
CVSS:3.1/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
References
Impacted products
Date Public
2026-04-01 16:40
Credits
timomangcut | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2025-47530 (GCVE-0-2025-47530)

Vulnerability from cvelistv5 – Published: 2025-05-23 12:43 – Updated: 2026-04-28 16:12
VLAI
Title
WordPress WPFunnels plugin <= 3.5.18 - PHP Object Injection Vulnerability
Summary
Deserialization of Untrusted Data vulnerability in WPFunnels WPFunnels wpfunnels allows Object Injection.This issue affects WPFunnels: from n/a through <= 3.5.18.
Severity
9.8 (Critical)
CVSS:3.1/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
References
Impacted products
Vendor Product Version
WPFunnels WPFunnels Affected: 0 , ≤ 3.5.18 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:40
Credits
timomangcut | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2025-47292 (GCVE-0-2025-47292)

Vulnerability from cvelistv5 – Published: 2025-05-14 10:44 – Updated: 2025-05-14 13:34
VLAI
Title
Cap Collectif vulnerable to insecure deserialization leading to remote code execution
Summary
Cap Collectif is an online decision making platform that integrates several tools. Before commit 812f2a7d271b76deab1175bdaf2be0b8102dd198, the `DebateAlternateArgumentsResolver` deserializes a `Cursor`, allowing any classes and which can be controlled by unauthenticated user. Exploitation of this vulnerability can lead to Remote Code Execution. The vulnerability is fixed in commit 812f2a7d271b76deab1175bdaf2be0b8102dd198.
Severity
9.5 (Critical)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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
cap-collectif cap-collectif Affected: < 812f2a7d271b76deab1175bdaf2be0b8102dd198
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-47277 (GCVE-0-2025-47277)

Vulnerability from cvelistv5 – Published: 2025-05-20 17:32 – Updated: 2025-05-20 17:52
VLAI
Title
vLLM Allows Remote Code Execution via PyNcclPipe Communication Service
Summary
vLLM, an inference and serving engine for large language models (LLMs), has an issue in versions 0.6.5 through 0.8.4 that ONLY impacts environments using the `PyNcclPipe` KV cache transfer integration with the V0 engine. No other configurations are affected. vLLM supports the use of the `PyNcclPipe` class to establish a peer-to-peer communication domain for data transmission between distributed nodes. The GPU-side KV-Cache transmission is implemented through the `PyNcclCommunicator` class, while CPU-side control message passing is handled via the `send_obj` and `recv_obj` methods on the CPU side.​ The intention was that this interface should only be exposed to a private network using the IP address specified by the `--kv-ip` CLI parameter. The vLLM documentation covers how this must be limited to a secured network. The default and intentional behavior from PyTorch is that the `TCPStore` interface listens on ALL interfaces, regardless of what IP address is provided. The IP address given was only used as a client-side address to use. vLLM was fixed to use a workaround to force the `TCPStore` instance to bind its socket to a specified private interface. As of version 0.8.5, vLLM limits the `TCPStore` socket to the private interface as configured.
Severity
9.8 (Critical)
CVSS:3.1/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
References
Impacted products
Vendor Product Version
vllm-project vllm Affected: >= 0.6.5, < 0.8.5
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-47166 (GCVE-0-2025-47166)

Vulnerability from cvelistv5 – Published: 2025-06-10 17:02 – Updated: 2026-02-26 17:50
VLAI
Title
Microsoft SharePoint Server Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Date Public
2025-06-10 07:00
Show details on NVD website
To clipboard 

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CVE-2025-47163 (GCVE-0-2025-47163)

Vulnerability from cvelistv5 – Published: 2025-06-10 17:02 – Updated: 2026-02-26 17:50
VLAI
Title
Microsoft SharePoint Server Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Date Public
2025-06-10 07:00
Show details on NVD website
To clipboard 

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CVE-2025-46738 (GCVE-0-2025-46738)

Vulnerability from cvelistv5 – Published: 2025-05-12 16:07 – Updated: 2025-05-12 17:57
VLAI
Title
Deserialization of Untrusted Data
Summary
An authenticated attacker can maliciously modify layout data files in the SEL-5033 installation directory to execute arbitrary code.
Severity
6.6 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
SEL
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2025-46567 (GCVE-0-2025-46567)

Vulnerability from cvelistv5 – Published: 2025-05-01 17:20 – Updated: 2025-05-02 17:29
VLAI
Title
LLaMA-Factory Allows Arbitrary Code Execution via Unsafe Deserialization in Ilamafy_baichuan2.py
Summary
LLama Factory enables fine-tuning of large language models. Prior to version 1.0.0, a critical vulnerability exists in the `llamafy_baichuan2.py` script of the LLaMA-Factory project. The script performs insecure deserialization using `torch.load()` on user-supplied `.bin` files from an input directory. An attacker can exploit this behavior by crafting a malicious `.bin` file that executes arbitrary commands during deserialization. This issue has been patched in version 1.0.0.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
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
hiyouga LLaMA-Factory Affected: < 1.0.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-46481 (GCVE-0-2025-46481)

Vulnerability from cvelistv5 – Published: 2025-04-24 16:09 – Updated: 2026-04-28 16:12
VLAI
Title
WordPress Flickr Shortcode Importer plugin <= 2.2.3 - PHP Object Injection Vulnerability
Summary
Deserialization of Untrusted Data vulnerability in Michael Cannon Flickr Shortcode Importer flickr-shortcode-importer allows Object Injection.This issue affects Flickr Shortcode Importer: from n/a through <= 2.2.3.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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
Michael Cannon Flickr Shortcode Importer Affected: 0 , ≤ 2.2.3 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:39
Credits
Ngo Bui Truong Vu | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2025-46473 (GCVE-0-2025-46473)

Vulnerability from cvelistv5 – Published: 2025-04-24 16:09 – Updated: 2026-04-28 16:12
VLAI
Title
WordPress Social Counter plugin <= 2.0.5 - PHP Object Injection Vulnerability
Summary
Deserialization of Untrusted Data vulnerability in Prisna Social Counter social-counter allows Object Injection.This issue affects Social Counter: from n/a through <= 2.0.5.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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
Prisna Social Counter Affected: 0 , ≤ 2.0.5 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:39
Credits
Nguyen Ngoc Quang Bach (maysbachs) | Patchstack Bug Bounty Program
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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