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-2026-27303 (GCVE-0-2026-27303)

Vulnerability from cvelistv5 – Published: 2026-04-14 17:33 – Updated: 2026-04-28 02:24
VLAI
Title
Adobe Connect | Deserialization of Untrusted Data (CWE-502)
Summary
Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.
Severity
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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 (CWE-502)
Assigner
References
Impacted products
Vendor Product Version
Adobe Adobe Connect Affected: 0 , ≤ 12.10 (semver)
Create a notification for this product.
Date Public
2026-04-14 17:00
Show details on NVD website
To clipboard 

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CVE-2026-27333 (GCVE-0-2026-27333)

Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 14:14
VLAI
Title
WordPress Paid Videochat Turnkey Site plugin <= 7.3.23 - Deserialization of untrusted data vulnerability
Summary
Unauthenticated Deserialization of untrusted data in Paid Videochat Turnkey Site <= 7.3.23 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
VideoWhisper.com Paid Videochat Turnkey Site Affected: n/a , ≤ 7.3.23 (custom)
Create a notification for this product.
Credits
Phat RiO | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27338 (GCVE-0-2026-27338)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:53 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress Car Zone theme <= 3.7 - Deserialization of untrusted data vulnerability
Summary
Deserialization of Untrusted Data vulnerability in AivahThemes Car Zone carzone allows Object Injection.This issue affects Car Zone: from n/a through <= 3.7.
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
AivahThemes Car Zone Affected: 0 , ≤ 3.7 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27369 (GCVE-0-2026-27369)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:53 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress Celeste theme <= 1.3.6 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in BoldThemes Celeste celeste allows Object Injection.This issue affects Celeste: from n/a through <= 1.3.6.
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
BoldThemes Celeste Affected: 0 , ≤ 1.3.6 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
João Pedro S Alcântara (Kinorth) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27379 (GCVE-0-2026-27379)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:53 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress NextScripts plugin <= 4.4.7 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in NextScripts NextScripts social-networks-auto-poster-facebook-twitter-g allows Object Injection.This issue affects NextScripts: from n/a through <= 4.4.7.
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
NextScripts NextScripts Affected: 0 , ≤ 4.4.7 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
Muhammad Yudha - DJ | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27410 (GCVE-0-2026-27410)

Vulnerability from cvelistv5 – Published: 2026-06-17 09:50 – Updated: 2026-06-17 15:33
VLAI
Title
WordPress Slimstat Analytics plugin < 5.4.0 - Deserialization of untrusted data vulnerability
Summary
Unauthenticated Deserialization of untrusted data in Slimstat Analytics < 5.4.0 versions.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
VeronaLabs Slimstat Analytics Affected: n/a , < 5.4.0 (custom)
Create a notification for this product.
Credits
mcdruid | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27414 (GCVE-0-2026-27414)

Vulnerability from cvelistv5 – Published: 2026-07-02 11:14 – Updated: 2026-07-02 15:53
VLAI
Title
WordPress Werkstatt theme <= 4.8.3 - PHP Object Injection vulnerability
Summary
Contributor PHP Object Injection in Werkstatt <= 4.8.3 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
Fuelthemes Werkstatt Affected: n/a , ≤ 4.8.3 (custom)
Create a notification for this product.
Credits
João Pedro S Alcântara (Kinorth) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27417 (GCVE-0-2026-27417)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:54 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress Sweet Date theme < 4.0.1 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in SeventhQueen Sweet Date sweetdate allows Object Injection.This issue affects Sweet Date: from n/a through < 4.0.1.
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: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
SeventhQueen Sweet Date Affected: 0 , ≤ 4.0.1 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
João Pedro S Alcântara (Kinorth) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27429 (GCVE-0-2026-27429)

Vulnerability from cvelistv5 – Published: 2026-06-16 20:57 – Updated: 2026-06-17 10:44
VLAI
Title
WordPress Nifty theme <= 1.4.1 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Nifty <= 1.4.1 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
BoldThemes Nifty Affected: n/a , ≤ 1.4.1 (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-2026-27437 (GCVE-0-2026-27437)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:54 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress Tennis Club theme <= 1.2.3 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in ThemeREX Tennis Club tennis-sportclub allows Object Injection.This issue affects Tennis Club: from n/a through <= 1.2.3.
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 Tennis Club Affected: 0 , ≤ 1.2.3 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:05
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | 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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