Common Weakness Enumeration
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.
2664 vulnerabilities reference this CWE, most recent first.
CVE-2026-103349 (GCVE-0-2026-103349)
Vulnerability from cvelistv5 – Published: 2026-10-05 18:08 – Updated: 2026-10-06 10:41 X_Open Source
VLAI
EPSS
VEX
Title
WordPress Product Feed PRO for WooCommerce plugin <= 13.5.7 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in Rymera Web Co Product Feed PRO for WooCommerce woo-product-feed-pro allows Object Injection.This issue affects Product Feed PRO for WooCommerce: from n/a through 13.5.7.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 10:16 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rymera Web Co | Product Feed PRO for WooCommerce |
Affected:
0 , ≤ 13.5.7
(custom)
|
Date Public
2026-10-03 18:00
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CVE-2026-103348 (GCVE-0-2026-103348)
Vulnerability from cvelistv5 – Published: 2026-10-05 19:00 – Updated: 2026-10-06 10:41 X_Open Source
VLAI
EPSS
VEX
Title
WordPress WP Ultimate Exporter plugin <= 3.0 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in Smackcoders Inc. WP Ultimate Exporter wp-ultimate-exporter allows Object Injection.This issue affects WP Ultimate Exporter: from n/a through 3.0.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 10:25 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Smackcoders Inc. | WP Ultimate Exporter |
Affected:
0 , ≤ 3.0
(custom)
|
Date Public
2026-10-03 18:39
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CVE-2026-103041 (GCVE-0-2026-103041)
Vulnerability from cvelistv5 – Published: 2026-09-29 22:51 – Updated: 2026-09-30 13:51
VLAI
EPSS
VEX
Title
LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Embed Cache RPyC Service
Summary
LightLLM through 1.2.0 multimodal deployments expose an unauthenticated RPyC cache service with pickle deserialization enabled on all interfaces. Attackers can send crafted serialized objects to exposed cache methods to execute arbitrary code with service privileges.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:51 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/ModelTC/LightLLM/issues/1596 | issue-tracking |
| https://github.com/ModelTC/lightllm/blob/v1.2.0/l… | technical-description |
| https://github.com/ModelTC/lightllm/blob/v1.2.0/l… | technical-description |
| https://github.com/ModelTC/LightLLM | product |
| https://www.vulncheck.com/advisories/lightllm-thr… | third-party-advisory |
Date Public
2026-09-29 00:00
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CVE-2026-103040 (GCVE-0-2026-103040)
Vulnerability from cvelistv5 – Published: 2026-09-29 22:51 – Updated: 2026-09-30 13:59
VLAI
EPSS
VEX
Title
LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC Service
Summary
LightLLM through 1.2.0 contains a remote code execution vulnerability in the router profiler service when started with --enable_profiling flag. The service exposes an unauthenticated RPyC server with pickle deserialization enabled, allowing attackers to execute arbitrary code by sending crafted serialized objects to the profiler command queue.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:58 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/ModelTC/LightLLM/issues/1597 | issue-tracking |
| https://github.com/ModelTC/lightllm/blob/v1.2.0/l… | technical-description |
| https://github.com/ModelTC/lightllm/blob/v1.2.0/l… | technical-description |
| https://github.com/ModelTC/LightLLM | product |
| https://www.vulncheck.com/advisories/lightllm-thr… | third-party-advisory |
Date Public
2026-09-29 00:00
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CVE-2026-103039 (GCVE-0-2026-103039)
Vulnerability from cvelistv5 – Published: 2026-10-30 06:47 – Updated: 2026-10-30 15:57
VLAI
EPSS
VEX
Title
Gravity Forms <= 3.1.2 - Unauthenticated PHP Object Injection via Post Custom Field
Summary
The Gravity Forms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.1.2 via a Post Custom Field whose input type is List. This is due to GFFormsModel::create_post() passing the submitted value to WordPress' unrestricted global maybe_unserialize() rather than the plugin's own hardened GFCommon::maybe_unserialize(), which was added in 3.1.1 and passes allowed_classes => false precisely to prevent object instantiation. Where the field has a content template enabled, the submitted row reaches that call verbatim. This makes it possible for unauthenticated attackers to inject a PHP object into post meta. No PHP Object Injection gadget chain is present in the plugin itself; however, if a gadget chain is present via an additional plugin or theme, it could allow the attacker to perform actions such as remote code execution. Where the custom field is mapped to the protected _wp_page_template meta key, WordPress itself supplies the chain: validate_file() accepts non-scalars, WP_Theme::__toString() then resolves an attacker-controlled path, and on hosts with a readable PEAR install and register_argc_argv enabled this yields remote code execution.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 15:48 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Wordfence
CNA
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Gravity Forms | Gravity Forms |
Affected:
0 , ≤ 3.1.2
(semver)
|
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CVE-2026-102739 (GCVE-0-2026-102739)
Vulnerability from cvelistv5 – Published: 2026-11-05 16:09 – Updated: 2026-11-09 16:50
VLAI
EPSS
VEX
Title
ESPectre: Unsafe Deserialization on .npz dataset leads to Code Execution
Summary
ESPectre is a Wi-Fi motion sensing platform for ESP32. Prior to 3.0.0-rc1, Micro-ESPectre analysis tools, including tools/6_optimize_filter_params.py, tools/1_analyze_raw_data.py, and tools/10_train_ml_model.py, load NPZ datasets with NumPy pickle support enabled through micro-espectre/tools/csi_utils.py and a direct loader. A malicious dataset contributor or pull-request author can place an object-typed array in a .npz file under micro-espectre/data, causing pickle-controlled code to execute as the maintainer or developer when a documented analysis tool accesses the field. This issue is fixed in version 3.0.0-rc1.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 16:12 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/francescopace/espectre/securit… | x_refsource_CONFIRM |
| https://github.com/francescopace/espectre/pull/154 | x_refsource_MISC |
| https://github.com/francescopace/espectre/commit/… | x_refsource_MISC |
| https://github.com/francescopace/espectre/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| francescopace | espectre |
Affected:
< 3.0.0-rc1
|
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CVE-2026-102554 (GCVE-0-2026-102554)
Vulnerability from cvelistv5 – Published: 2026-10-09 15:07 – Updated: 2026-10-09 18:09
VLAI
EPSS
VEX
Title
Denial of Service via Eager Array Allocation During Deserialization in Guava
Summary
Allocation of resources without limits or throttling (CWE-770) during Java object deserialization in Google Guava versions 4.0 through 33.7.1 allows an attacker to cause a Denial of Service via OutOfMemoryError. When deserializing CompactHashMap, CompactHashSet, or MapMakerInternalMap instances, Guava eagerly allocates an array based on a caller-specified size parameter without throttling, permitting memory exhaustion from crafted serialization streams.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 18:09 UTC
CWE
Assigner
Google
CNA
References
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CVE-2026-102455 (GCVE-0-2026-102455)
Vulnerability from cvelistv5 – Published: 2026-09-30 08:29 – Updated: 2026-09-30 15:28
VLAI
EPSS
VEX
Title
DigiWin｜EasyFlow .NET - Insecure Deserialization
Summary
EasyFlow .NET developed by Digiwin has a Insecure Deserialization vulnerability. Unauthenticated remote attackers can execute arbitrary code on the server by sending maliciously crafted serialized content.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:54 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
twcert
CNA
References
2 references
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-11237-c9189-1.html | third-party-advisory |
| https://www.twcert.org.tw/en/cp-139-11242-13f37-2.html | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| DigiWin | EasyFlow .NET |
Affected:
6.1.*
Affected: 6.6 , ≤ 6.6.19 (custom) Affected: 8.1 , ≤ 8.1.5 (custom) |
Date Public
2026-09-30 08:27
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CVE-2026-102435 (GCVE-0-2026-102435)
Vulnerability from cvelistv5 – Published: 2026-11-02 19:31 – Updated: 2026-11-03 18:33
VLAI
EPSS
VEX
Title
Ultra Addons for Contact Form 7 <= 3.5.54 - Unauthenticated PHP Object Injection to Arbitrary File Deletion via CF7 Form Field
Summary
The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the _getObjAttr function in all versions up to, and including, 3.5.54. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). This requires the PDF Generator add-on to be active and a Contact Form 7 form to be configured for PDF generation, as the WPCF7_Submission POP gadget chain relies on CF7 being present to complete the file deletion via __destruct(). Note: This vulnerability can only be exploited when the PDF generator feature is enabled.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:55 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Wordfence
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| themefic | Ultra Addons for Contact Form 7 |
Affected:
0 , ≤ 3.5.54
(semver)
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CVE-2026-102392 (GCVE-0-2026-102392)
Vulnerability from cvelistv5 – Published: 2026-09-30 17:39 – Updated: 2026-09-30 17:59
VLAI
EPSS
VEX
Title
WordPress Extra Product Options For WooCommerce | Custom Product Addons and Fields plugin <= 3.3.8 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in Extra Product Options For WooCommerce | Custom Product Addons and Fields <= 3.3.8 versions.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 17:56 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ThemeHigh | Extra Product Options For WooCommerce | Custom Product Addons and Fields |
Affected:
n/a , ≤ 3.3.8
(custom)
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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.