Common Weakness Enumeration

CWE-502

Allowed

Deserialization of Untrusted Data

Abstraction: Base · Status: Draft

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

2663 vulnerabilities reference this CWE, most recent first.

CVE-2026-118080 (GCVE-0-2026-118080)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-29 17:15
VLAI
Title
WordPress Social Snap plugin <= 1.5.4 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in Social Snap <= 1.5.4 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 16:29 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Social Snap Social Snap Affected: n/a , ≤ 1.5.4 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-118079 (GCVE-0-2026-118079)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-11-03 16:48 X_Open Source
VLAI
Title
WordPress FV Flowplayer Video Player plugin <= 7.5.56.7212 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in FolioVision FV Flowplayer Video Player fv-wordpress-flowplayer allows Object Injection.This issue affects FV Flowplayer Video Player: from n/a through 7.5.56.7212.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:35 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
FolioVision FV Flowplayer Video Player Affected: 0 , ≤ 7.5.56.7212 (custom)
Create a notification for this product.
Date Public
2026-10-28 08:24
Show details on NVD website

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CVE-2026-118078 (GCVE-0-2026-118078)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-30 18:49
VLAI
Title
WordPress Product Catalog Feed by PixelYourSite plugin <= 3.1.4 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in Product Catalog Feed by PixelYourSite <= 3.1.4 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:35 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Show details on NVD website

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CVE-2026-118077 (GCVE-0-2026-118077)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-30 18:50
VLAI
Title
WordPress Sastra Essential Addons for Elementor plugin <= 1.2.3 - PHP Object Injection vulnerability
Summary
Author PHP Object Injection in Sastra Essential Addons for Elementor <= 1.2.3 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:35 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Fast Themes Sastra Essential Addons for Elementor Affected: n/a , ≤ 1.2.3 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-118076 (GCVE-0-2026-118076)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-29 19:44
VLAI
Title
WordPress Frisbii Pay plugin <= 1.8.19 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in Frisbii Pay <= 1.8.19 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 19:44 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Frisbii Frisbii Pay Affected: n/a , ≤ 1.8.19 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-118075 (GCVE-0-2026-118075)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-29 17:15
VLAI
Title
WordPress WP Media folders plugin <= 1.1.10 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in WP Media folders <= 1.1.10 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 16:28 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
dbarrere WP Media folders Affected: n/a , ≤ 1.1.10 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-118074 (GCVE-0-2026-118074)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-30 18:50
VLAI
Title
WordPress Finale Lite plugin <= 2.21.0 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in Finale Lite <= 2.21.0 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:36 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Daman Jeet Finale Lite Affected: n/a , ≤ 2.21.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-118073 (GCVE-0-2026-118073)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-30 18:50
VLAI
Title
WordPress News Kit Elementor Addons plugin <= 1.5.0 - PHP Object Injection vulnerability
Summary
Subscriber PHP Object Injection in News Kit Elementor Addons <= 1.5.0 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:33 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
blazethemes News Kit Elementor Addons Affected: n/a , ≤ 1.5.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-116869 (GCVE-0-2026-116869)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-30 18:50
VLAI
Title
WordPress myPOS Checkout plugin <= 1.4.5 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in myPOS Checkout <= 1.4.5 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:36 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
myPOS Payments myPOS Checkout Affected: n/a , ≤ 1.4.5 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-116868 (GCVE-0-2026-116868)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-29 19:45
VLAI
Title
WordPress BuddyPress Xprofile Custom Field Types plugin <= 1.3.1 - PHP Object Injection vulnerability
Summary
Subscriber PHP Object Injection in BuddyPress Xprofile Custom Field Types <= 1.3.1 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 19:45 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
BuddyDev BuddyPress Xprofile Custom Field Types Affected: n/a , ≤ 1.3.1 (custom)
Create a notification for this product.
Show details on NVD website

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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.