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.

4800 vulnerabilities reference this CWE, most recent first.

GHSA-7JQC-9JJ9-67RH

Vulnerability from github – Published: 2026-06-15 21:30 – Updated: 2026-06-15 21:30
VLAI
Details

Unauthenticated Deserialization of untrusted data in Paid Videochat Turnkey Site <= 7.3.23 versions.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-27333"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-15T21:16:40Z",
    "severity": "HIGH"
  },
  "details": "Unauthenticated Deserialization of untrusted data in Paid Videochat Turnkey Site \u003c= 7.3.23 versions.",
  "id": "GHSA-7jqc-9jj9-67rh",
  "modified": "2026-06-15T21:30:43Z",
  "published": "2026-06-15T21:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27333"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/ppv-live-webcams/vulnerability/wordpress-paid-videochat-turnkey-site-plugin-7-3-23-deserialization-of-untrusted-data-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7JRR-93M5-98FW

Vulnerability from github – Published: 2026-03-25 18:31 – Updated: 2026-03-26 18:31
VLAI
Details

Deserialization of Untrusted Data vulnerability in Edge-Themes Archicon archicon allows Object Injection.This issue affects Archicon: from n/a through < 1.7.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-32506"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-25T17:17:02Z",
    "severity": "MODERATE"
  },
  "details": "Deserialization of Untrusted Data vulnerability in Edge-Themes Archicon archicon allows Object Injection.This issue affects Archicon: from n/a through \u003c 1.7.",
  "id": "GHSA-7jrr-93m5-98fw",
  "modified": "2026-03-26T18:31:35Z",
  "published": "2026-03-25T18:31:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32506"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/Wordpress/Theme/archicon/vulnerability/wordpress-archicon-theme-1-7-arbitrary-object-instantiation-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7M4F-494F-VXHX

Vulnerability from github – Published: 2022-05-24 19:12 – Updated: 2022-05-24 19:12
VLAI
Details

The bt_bb_get_grid AJAX action of the Bold Page Builder WordPress plugin before 3.1.6 passes user input into the unserialize() function without any validation or sanitisation, which could lead to a PHP Object Injection. Even though the plugin did not contain a suitable gadget to fully exploit the issue, other installed plugins on the blog could allow such issue to be exploited and lead to RCE in some cases.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-24579"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-30T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "The bt_bb_get_grid AJAX action of the Bold Page Builder WordPress plugin before 3.1.6 passes user input into the unserialize() function without any validation or sanitisation, which could lead to a PHP Object Injection. Even though the plugin did not contain a suitable gadget to fully exploit the issue, other installed plugins on the blog could allow such issue to be exploited and lead to RCE in some cases.",
  "id": "GHSA-7m4f-494f-vxhx",
  "modified": "2022-05-24T19:12:31Z",
  "published": "2022-05-24T19:12:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-24579"
    },
    {
      "type": "WEB",
      "url": "https://wpscan.com/vulnerability/08edce3f-2746-4886-8439-76e44ec76fa8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-7M5W-J2H7-2HM7

Vulnerability from github – Published: 2022-05-24 17:04 – Updated: 2024-04-04 02:44
VLAI
Details

An issue was discovered in Public Knowledge Project (PKP) pkp-lib before 3.1.2-2, as used in Open Journal Systems (OJS) before 3.1.2-2. Code injection can occur in the OJS report generator if an authenticated Journal Manager user visits a crafted URL, because unserialize is used.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-19909"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-12-19T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Public Knowledge Project (PKP) pkp-lib before 3.1.2-2, as used in Open Journal Systems (OJS) before 3.1.2-2. Code injection can occur in the OJS report generator if an authenticated Journal Manager user visits a crafted URL, because unserialize is used.",
  "id": "GHSA-7m5w-j2h7-2hm7",
  "modified": "2024-04-04T02:44:37Z",
  "published": "2022-05-24T17:04:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19909"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pkp/pkp-lib/issues/5302"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pkp/pkp-lib/compare/3_1_2-1...3_1_2-2"
    },
    {
      "type": "WEB",
      "url": "https://pkp.sfu.ca/ojs/ojs_download"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7M9J-89H2-PVXF

Vulnerability from github – Published: 2023-01-19 00:30 – Updated: 2025-04-04 18:30
VLAI
Details

An issue was discovered in OpenText Content Suite Platform 22.1 (16.2.19.1803). The Common Gateway Interface (CGI) program cs.exe allows an attacker to increase/decrease an arbitrary memory address by 1 and trigger a call to a method of a vftable with a vftable pointer value chosen by the attacker.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-45923"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-01-18T22:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in OpenText Content Suite Platform 22.1 (16.2.19.1803). The Common Gateway Interface (CGI) program cs.exe allows an attacker to increase/decrease an arbitrary memory address by 1 and trigger a call to a method of a vftable with a vftable pointer value chosen by the attacker.",
  "id": "GHSA-7m9j-89h2-pvxf",
  "modified": "2025-04-04T18:30:32Z",
  "published": "2023-01-19T00:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-45923"
    },
    {
      "type": "WEB",
      "url": "https://sec-consult.com/vulnerability-lab/advisory/pre-authenticated-remote-code-execution-in-csexe-opentext-server-component"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/170613/OpenText-Extended-ECM-22.3-cs.exe-Remote-Code-Execution.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2023/Jan/10"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7MGG-3RQ2-HFF4

Vulnerability from github – Published: 2024-01-27 12:30 – Updated: 2024-02-02 18:10
VLAI
Summary
ai-flow Deserialization of Untrusted Data vulnerability
Details

A vulnerability was found in flink-extended ai-flow 0.3.1. It has been declared as critical. Affected by this vulnerability is the function cloudpickle.loads of the file \ai_flow\cli\commands\workflow_command.py. The manipulation leads to deserialization. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The identifier VDB-252205 was assigned to this vulnerability.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "ai-flow"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-0960"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-02-02T18:10:22Z",
    "nvd_published_at": "2024-01-27T12:15:07Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was found in flink-extended ai-flow 0.3.1. It has been declared as critical. Affected by this vulnerability is the function cloudpickle.loads of the file `\\ai_flow\\cli\\commands\\workflow_command.py`. The manipulation leads to deserialization. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The identifier VDB-252205 was assigned to this vulnerability.",
  "id": "GHSA-7mgg-3rq2-hff4",
  "modified": "2024-02-02T18:10:22Z",
  "published": "2024-01-27T12:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-0960"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bayuncao/vul-cve-8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bayuncao/vul-cve-8/blob/main/dataset.pkl"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/flink-extended/ai-flow"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.252205"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.252205"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ai-flow Deserialization of Untrusted Data vulnerability"
}

GHSA-7MGM-6CGR-GH26

Vulnerability from github – Published: 2022-05-24 16:44 – Updated: 2023-07-11 18:31
VLAI
Details

SmarterTools SmarterMail 16.x before build 6985 allows deserialization of untrusted data. An unauthenticated attacker could run commands on the server when port 17001 was remotely accessible. This port is not accessible remotely by default after applying the Build 6985 patch.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-7214"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-04-24T15:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "SmarterTools SmarterMail 16.x before build 6985 allows deserialization of untrusted data. An unauthenticated attacker could run commands on the server when port 17001 was remotely accessible. This port is not accessible remotely by default after applying the Build 6985 patch.",
  "id": "GHSA-7mgm-6cgr-gh26",
  "modified": "2023-07-11T18:31:18Z",
  "published": "2022-05-24T16:44:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-7214"
    },
    {
      "type": "WEB",
      "url": "https://www.nccgroup.trust/uk/our-research/technical-advisory-multiple-vulnerabilities-in-smartermail"
    },
    {
      "type": "WEB",
      "url": "https://www.smartertools.com/smartermail/release-notes/current"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/160416/SmarterMail-6985-Remote-Code-Execution.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/173388/SmarterTools-SmarterMail-Remote-Code-Execution.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7MPM-GF56-Q8WV

Vulnerability from github – Published: 2025-10-18 06:30 – Updated: 2025-10-18 06:30
VLAI
Details

The Appointments plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.2.1 via deserialization of untrusted input from the wpmudev_appointments cookie. This allows unauthenticated attackers to inject a PHP Object. Attackers were actively exploiting this vulnerability with the WP_Theme() class to create backdoors.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-20206"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-18T04:15:43Z",
    "severity": "CRITICAL"
  },
  "details": "The Appointments plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.2.1 via deserialization of untrusted input from the `wpmudev_appointments` cookie. This allows unauthenticated attackers to inject a PHP Object. Attackers were actively exploiting this vulnerability with the WP_Theme() class to create backdoors.",
  "id": "GHSA-7mpm-gf56-q8wv",
  "modified": "2025-10-18T06:30:25Z",
  "published": "2025-10-18T06:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-20206"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/1733186/appointments"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/blog/2017/10/3-zero-day-plugin-vulnerabilities-exploited-wild"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7e8f230e-3f96-4efd-806d-72725b960303?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7MWP-XG8F-75PG

Vulnerability from github – Published: 2023-04-27 03:30 – Updated: 2024-04-04 03:42
VLAI
Details

aEnrich Technology a+HRD has a vulnerability of Deserialization of Untrusted Data within its MSMQ asynchronized message process. An unauthenticated remote attacker can exploit this vulnerability to execute arbitrary system commands to perform arbitrary system operation or disrupt service.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-20853"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-04-27T02:15:09Z",
    "severity": "CRITICAL"
  },
  "details": "aEnrich Technology a+HRD has a vulnerability of Deserialization of Untrusted Data within its MSMQ asynchronized message process. An unauthenticated remote attacker can exploit this vulnerability to execute arbitrary system commands to perform arbitrary system operation or disrupt service.",
  "id": "GHSA-7mwp-xg8f-75pg",
  "modified": "2024-04-04T03:42:38Z",
  "published": "2023-04-27T03:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20853"
    },
    {
      "type": "WEB",
      "url": "https://www.twcert.org.tw/tw/cp-132-7024-bdefe-1.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7P3M-6WWX-VGFX

Vulnerability from github – Published: 2024-04-09 21:32 – Updated: 2026-04-08 21:32
VLAI
Details

The Hubbub Lite – Fast, Reliable Social Sharing Buttons plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.33.1 via deserialization of untrusted input via the 'dpsp_maybe_unserialize' function. This makes it possible for authenticated attackers, with contributor access and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-2501"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-09T19:15:34Z",
    "severity": "HIGH"
  },
  "details": "The Hubbub Lite \u2013 Fast, Reliable Social Sharing Buttons plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.33.1 via deserialization of untrusted input via the \u0027dpsp_maybe_unserialize\u0027 function. This makes it possible for authenticated attackers, with contributor access and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.",
  "id": "GHSA-7p3m-6wwx-vgfx",
  "modified": "2026-04-08T21:32:29Z",
  "published": "2024-04-09T21:32:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-2501"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/social-pug/trunk/inc/functions-post.php#L194"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/social-pug/trunk/inc/functions.php#L556"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?old_path=/social-pug/tags/1.33.1\u0026old=3060042\u0026new_path=/social-pug/tags/1.33.2\u0026new=3060042\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d3999c59-57a9-410c-a550-7d198bdb25ea?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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.