Common Weakness Enumeration

CWE-502

Deserialization of Untrusted Data

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

CVE-2026-39472 (GCVE-0-2026-39472)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 14:48
VLAI
Title
WordPress WooCommerce PDF Invoices & Packing Slips plugin < 5.9.0 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in WooCommerce PDF Invoices & Packing Slips < 5.9.0 versions.
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
Credits
daroo | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39474 (GCVE-0-2026-39474)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 17:11
VLAI
Title
WordPress Post Duplicator plugin <= 3.0.10 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in Post Duplicator <= 3.0.10 versions.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/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
metaphorcreations Post Duplicator Affected: n/a , ≤ 3.0.10 (custom)
Create a notification for this product.
Credits
Nguyen Ba Khanh | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39478 (GCVE-0-2026-39478)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 12:36
VLAI
Title
WordPress Anti-Malware Security and Brute-Force Firewall plugin <= 4.23.87 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in Anti-Malware Security and Brute-Force Firewall <= 4.23.87 versions.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/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
Credits
daroo | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39481 (GCVE-0-2026-39481)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 18:05
VLAI
Title
WordPress Modula Image Gallery plugin <= 2.14.18 - PHP Object Injection vulnerability
Summary
Author PHP Object Injection in Modula Image Gallery <= 2.14.18 versions.
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
WP Chill Modula Image Gallery Affected: n/a , ≤ 2.14.18 (custom)
Create a notification for this product.
Credits
daroo | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39498 (GCVE-0-2026-39498)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 14:21
VLAI
Title
WordPress YayMail plugin <= 4.3.3 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in YayMail <= 4.3.3 versions.
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
Yeeaddons YayMail Affected: n/a , ≤ 4.3.3 (custom)
Create a notification for this product.
Credits
daroo | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39499 (GCVE-0-2026-39499)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 15:49
VLAI
Title
WordPress Advanced Product Fields (Product Addons) for WooCommerce plugin <= 1.6.19 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in Advanced Product Fields (Product Addons) for WooCommerce <= 1.6.19 versions.
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
Credits
daroo | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39529 (GCVE-0-2026-39529)

Vulnerability from cvelistv5 – Published: 2026-06-16 20:57 – Updated: 2026-06-17 10:42
VLAI
Title
WordPress Elementra theme <= 1.0.9 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Elementra <= 1.0.9 versions.
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
ThemeREX Group Elementra Affected: n/a , ≤ 1.0.9 (custom)
Create a notification for this product.
Credits
Bonds | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39532 (GCVE-0-2026-39532)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:18 – Updated: 2026-06-16 17:11
VLAI
Title
WordPress Events Calendar for GeoDirectory plugin <= 2.3.25 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in Events Calendar for GeoDirectory <= 2.3.25 versions.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/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
Stiofan Events Calendar for GeoDirectory Affected: n/a , ≤ 2.3.25 (custom)
Create a notification for this product.
Credits
daroo | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39539 (GCVE-0-2026-39539)

Vulnerability from cvelistv5 – Published: 2026-06-16 20:57 – Updated: 2026-06-17 10:41
VLAI
Title
WordPress Alloggio - Hotel Booking theme <= 2.1.2 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Alloggio - Hotel Booking <= 2.1.2 versions.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/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
Edge-Themes Alloggio - Hotel Booking Affected: n/a , ≤ 2.1.2 (custom)
Create a notification for this product.
Credits
Denver Jackson | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-39545 (GCVE-0-2026-39545)

Vulnerability from cvelistv5 – Published: 2026-06-17 09:50 – Updated: 2026-06-17 15:31
VLAI
Title
WordPress Zermatt theme <= 1.6.1 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Zermatt <= 1.6.1 versions.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/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
Select-Themes Zermatt Affected: n/a , ≤ 1.6.1 (custom)
Create a notification for this product.
Credits
Denver Jackson | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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Mitigation

Phases: Architecture and Design, Implementation

Description:

  • 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

Phase: Implementation

Description:

  • 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

Phase: Implementation

Description:

  • Explicitly define a final object() to prevent deserialization.
Mitigation

Phases: Architecture and Design, Implementation

Description:

  • 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

Phase: Implementation

Description:

  • 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

Phases: Architecture and Design, Implementation

Description:

  • 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 ID: MIT-29

Phase: Operation

Strategy: Firewall

Description:

  • 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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