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.

4801 vulnerabilities reference this CWE, most recent first.

GHSA-R8XP-HXFV-RQVR

Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35
VLAI
Details

Unauthenticated PHP Object Injection in Santé <= 1.5.1 versions.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-39567"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-17T13:20:20Z",
    "severity": "HIGH"
  },
  "details": "Unauthenticated PHP Object Injection in Sant\u00e9 \u003c= 1.5.1 versions.",
  "id": "GHSA-r8xp-hxfv-rqvr",
  "modified": "2026-06-17T18:35:49Z",
  "published": "2026-06-17T18:35:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39567"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/theme/sante/vulnerability/wordpress-sante-theme-1-5-1-php-object-injection-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-R92V-WW59-8XPG

Vulnerability from github – Published: 2022-02-19 00:01 – Updated: 2022-02-27 00:00
VLAI
Details

MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x: Device versions prior to v2.5.4.1 has a deserialization function that does not validate or check the data, allowing arbitrary classes to be created.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-0138"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-02-18T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x: Device versions prior to v2.5.4.1 has a deserialization function that does not validate or check the data, allowing arbitrary classes to be created.",
  "id": "GHSA-r92v-ww59-8xpg",
  "modified": "2022-02-27T00:00:26Z",
  "published": "2022-02-19T00:01:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0138"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-22-034-02"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-R937-WJX7-W2JP

Vulnerability from github – Published: 2026-06-26 15:32 – Updated: 2026-06-27 21:30
VLAI
Details

In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-53914"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-26T14:17:05Z",
    "severity": "MODERATE"
  },
  "details": "In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata",
  "id": "GHSA-r937-wjx7-w2jp",
  "modified": "2026-06-27T21:30:28Z",
  "published": "2026-06-26T15:32:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53914"
    },
    {
      "type": "WEB",
      "url": "https://www.jetbrains.com/privacy-security/issues-fixed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-R99W-QGV6-8R5P

Vulnerability from github – Published: 2026-03-24 21:31 – Updated: 2026-03-24 21:31
VLAI
Details

NVIDIA Megatron-LM contains a vulnerability in checkpoint loading where an Attacker may cause an RCE by convincing a user to load a maliciously crafted file. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-24150"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-24T21:16:27Z",
    "severity": "HIGH"
  },
  "details": "NVIDIA Megatron-LM contains a vulnerability in checkpoint loading where an Attacker may cause an RCE by convincing a user to load a maliciously crafted file. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.",
  "id": "GHSA-r99w-qgv6-8r5p",
  "modified": "2026-03-24T21:31:24Z",
  "published": "2026-03-24T21:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24150"
    },
    {
      "type": "WEB",
      "url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5769"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-24150"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-R9CV-8Q58-JR55

Vulnerability from github – Published: 2025-05-29 21:31 – Updated: 2026-04-01 18:35
VLAI
Details

Deserialization of Untrusted Data vulnerability in ThimPress Course Builder allows Object Injection.This issue affects Course Builder: from n/a before 3.6.6.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-48336"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-29T19:15:28Z",
    "severity": "CRITICAL"
  },
  "details": "Deserialization of Untrusted Data vulnerability in ThimPress Course Builder allows Object Injection.This issue affects Course Builder: from n/a before 3.6.6.",
  "id": "GHSA-r9cv-8q58-jr55",
  "modified": "2026-04-01T18:35:17Z",
  "published": "2025-05-29T21:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48336"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/theme/course-builder/vulnerability/wordpress-course-builder-3-6-6-php-object-injection-vulnerability?_s_id=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-R9G3-6M6X-RJVM

Vulnerability from github – Published: 2025-03-27 06:32 – Updated: 2025-03-27 06:32
VLAI
Details

The Export All Posts, Products, Orders, Refunds & Users plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.13 via deserialization of untrusted input in the 'returnMetaValueAsCustomerInput' function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-2332"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T06:15:28Z",
    "severity": "CRITICAL"
  },
  "details": "The Export All Posts, Products, Orders, Refunds \u0026 Users plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.13 via deserialization of untrusted input in the \u0027returnMetaValueAsCustomerInput\u0027 function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.",
  "id": "GHSA-r9g3-6m6x-rjvm",
  "modified": "2025-03-27T06:32:04Z",
  "published": "2025-03-27T06:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2332"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-ultimate-exporter/trunk/exportExtensions/ExportExtension.php#L3332"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3257504"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9546ab46-737c-4bd3-9542-8ab1b776b3ea?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-R9RJ-XR26-286V

Vulnerability from github – Published: 2026-07-01 00:34 – Updated: 2026-07-01 00:34
VLAI
Details

picklescan before 0.0.30 fails to detect cProfile.run function calls in pickle reduce methods, allowing attackers to execute arbitrary code. Remote attackers can craft malicious pickle files with cProfile.run payloads that bypass picklescan detection and achieve code execution upon deserialization.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-71363"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-30T23:16:51Z",
    "severity": "HIGH"
  },
  "details": "picklescan before 0.0.30 fails to detect cProfile.run function calls in pickle reduce methods, allowing attackers to execute arbitrary code. Remote attackers can craft malicious pickle files with cProfile.run payloads that bypass picklescan detection and achieve code execution upon deserialization.",
  "id": "GHSA-r9rj-xr26-286v",
  "modified": "2026-07-01T00:34:01Z",
  "published": "2026-07-01T00:34:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-49gj-c84q-6qm9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71363"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-cprofile-run-in-pickle-deserialization"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-R9VV-XJ4W-G8M8

Vulnerability from github – Published: 2022-05-13 01:11 – Updated: 2023-11-01 20:55
VLAI
Summary
Apache ActiveMQ Artemis RCE Via Deserialization Gadget Chain
Details

The getObject method of the javax.jms.ObjectMessage class in the (1) JMS Core client, (2) Artemis broker, and (3) Artemis REST component in Apache ActiveMQ Artemis before 1.4.0 might allow remote authenticated users with permission to send messages to the Artemis broker to deserialize arbitrary objects and execute arbitrary code by leveraging gadget classes being present on the Artemis classpath.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.activemq:artemis-pom"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-4978"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-31T18:15:46Z",
    "nvd_published_at": "2016-09-27T15:59:00Z",
    "severity": "HIGH"
  },
  "details": "The getObject method of the `javax.jms.ObjectMessage` class in the (1) JMS Core client, (2) Artemis broker, and (3) Artemis REST component in Apache ActiveMQ Artemis before 1.4.0 might allow remote authenticated users with permission to send messages to the Artemis broker to deserialize arbitrary objects and execute arbitrary code by leveraging gadget classes being present on the Artemis classpath.",
  "id": "GHSA-r9vv-xj4w-g8m8",
  "modified": "2023-11-01T20:55:36Z",
  "published": "2022-05-13T01:11:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4978"
    },
    {
      "type": "WEB",
      "url": "https://www.blackhat.com/docs/us-16/materials/us-16-Kaiser-Pwning-Your-Java-Messaging-With-Deserialization-Vulnerabilities.pdf"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20210123172653/http://www.securityfocus.com/bid/93142"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rc96ad63f148f784c84ea7f0a178c84a8985c6afccabbcd9847a82088@%3Ccommits.activemq.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rc96ad63f148f784c84ea7f0a178c84a8985c6afccabbcd9847a82088%40%3Ccommits.activemq.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d@%3Ccommits.activemq.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d%40%3Ccommits.activemq.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/d4ffbc6a43a915324a394b2913ceb7d07bc352f2d08caa19df0aff02@%3Cissues.activemq.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/d4ffbc6a43a915324a394b2913ceb7d07bc352f2d08caa19df0aff02%40%3Cissues.activemq.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/7260bd0955c12aac5bd892039d3356ba3aa0ff4caaf2aa4fd4fe84a2@%3Cissues.activemq.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/7260bd0955c12aac5bd892039d3356ba3aa0ff4caaf2aa4fd4fe84a2%40%3Cissues.activemq.apache.org%3E"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/activemq-artemis"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1451"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1450"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1449"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1448"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1447"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3458"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3456"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3455"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3454"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1837"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1836"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1835"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1834"
    },
    {
      "type": "WEB",
      "url": "http://mail-archives.apache.org/mod_mbox/activemq-users/201609.mbox/%3CCAH6wpnqzeNtpykT7emtDU1-GV7AvjFP5-YroWcCC4UZyQEFvtA%40mail.gmail.com%3E"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache ActiveMQ Artemis RCE Via Deserialization Gadget Chain"
}

GHSA-R9X2-MW85-9C4X

Vulnerability from github – Published: 2026-07-04 03:31 – Updated: 2026-07-04 03:31
VLAI
Details

picklescan before 0.0.33 fails to detect unsafe deserialization when numpy.f2py.crackfortran functions call eval on arbitrary strings. Attackers can embed malicious code in pickle files that executes when loaded from untrusted sources.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-71362"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-04T02:16:22Z",
    "severity": "HIGH"
  },
  "details": "picklescan before 0.0.33 fails to detect unsafe deserialization when numpy.f2py.crackfortran functions call eval on arbitrary strings. Attackers can embed malicious code in pickle files that executes when loaded from untrusted sources.",
  "id": "GHSA-r9x2-mw85-9c4x",
  "modified": "2026-07-04T03:31:01Z",
  "published": "2026-07-04T03:31:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-r8g5-cgf2-4m4m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71362"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-unsafe-deserialization-in-numpy-f2py-crackfortran"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-RC2G-JH8W-MQH9

Vulnerability from github – Published: 2026-04-08 03:32 – Updated: 2026-04-08 03:32
VLAI
Details

The Everest Forms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.4.3 via deserialization of untrusted input from form entry metadata. This is due to the html-admin-page-entries-view.php file calling PHP's native unserialize() on stored entry meta values without passing the allowed_classes parameter. This makes it possible for unauthenticated attackers to inject a serialized PHP object payload through any public Everest Forms form field. The payload survives sanitize_text_field() sanitization (serialization control characters are not stripped) and is stored in the wp_evf_entrymeta database table. When an administrator views entries or views an individual entry, the unsafe unserialize() call processes the stored data without class restrictions.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-3296"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-08T02:16:04Z",
    "severity": "CRITICAL"
  },
  "details": "The Everest Forms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.4.3 via deserialization of untrusted input from form entry metadata. This is due to the html-admin-page-entries-view.php file calling PHP\u0027s native unserialize() on stored entry meta values without passing the allowed_classes parameter. This makes it possible for unauthenticated attackers to inject a serialized PHP object payload through any public Everest Forms form field. The payload survives sanitize_text_field() sanitization (serialization control characters are not stripped) and is stored in the wp_evf_entrymeta database table. When an administrator views entries or views an individual entry, the unsafe unserialize() call processes the stored data without class restrictions.",
  "id": "GHSA-rc2g-jh8w-mqh9",
  "modified": "2026-04-08T03:32:14Z",
  "published": "2026-04-08T03:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3296"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.4.3/includes/admin/views/html-admin-page-entries-view.php#L133"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.4.3/includes/evf-core-functions.php#L5594"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/everest-forms/trunk/includes/admin/views/html-admin-page-entries-view.php#L133"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3489938/everest-forms/tags/3.4.4/readme.txt?old=3464753\u0026old_path=everest-forms%2Ftags%2F3.4.3%2Freadme.txt"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?old_path=/everest-forms/tags/3.4.3\u0026new_path=/everest-forms/tags/3.4.4"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2693ae37-790d-4b18-a9ec-054c8c27b8bc?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"
    }
  ]
}

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.