CWE-502
AllowedDeserialization 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-R5MF-5VCH-2VPF
Vulnerability from github – Published: 2026-05-20 06:31 – Updated: 2026-05-20 06:31The Boost plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.0.3 via deserialization of untrusted input in the STYXKEY-BOOST_USER_LOCATION cookie. 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.
{
"affected": [],
"aliases": [
"CVE-2026-7637"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-20T04:16:56Z",
"severity": "CRITICAL"
},
"details": "The Boost plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.0.3 via deserialization of untrusted input in the STYXKEY-BOOST_USER_LOCATION cookie. 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-r5mf-5vch-2vpf",
"modified": "2026-05-20T06:31:54Z",
"published": "2026-05-20T06:31:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7637"
},
{
"type": "WEB",
"url": "https://www.pixelyoursite.com/boost-plugin"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e391f560-2037-4180-a77e-1731524a318c?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-R5MM-2QCH-FMMR
Vulnerability from github – Published: 2026-07-17 21:31 – Updated: 2026-07-17 21:31IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the disk-based caching mechanism. The AsyncDiskCache class uses Python's unsafe pickle.loads() function to deserialize cached objects from disk without validation, integrity verification, or authentication, enabling arbitrary code execution when malicious pickle payloads are processed. Attackers who can influence cached data through file system access, malicious workflow inputs, custom components, or API manipulation can achieve complete system compromise with the privileges of the Langflow server process.
{
"affected": [],
"aliases": [
"CVE-2026-8476"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-17T20:17:30Z",
"severity": "CRITICAL"
},
"details": "IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the disk-based caching mechanism. The AsyncDiskCache class\u00a0uses Python\u0027s unsafe pickle.loads() function to deserialize cached objects from disk without validation, integrity verification, or authentication, enabling arbitrary code execution when malicious pickle payloads are processed. Attackers who can influence cached data through file system access, malicious workflow inputs, custom components, or API manipulation can achieve complete system compromise with the privileges of the Langflow server process.",
"id": "GHSA-r5mm-2qch-fmmr",
"modified": "2026-07-17T21:31:45Z",
"published": "2026-07-17T21:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8476"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7278922"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R5PF-H3VV-F4PR
Vulnerability from github – Published: 2023-06-14 09:30 – Updated: 2024-04-04 04:49A CWE-502: Deserialization of Untrusted Data vulnerability exists in the Dashboard module that could cause an interpretation of malicious payload data, potentially leading to remote code execution when an attacker gets the user to open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2023-3001"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-14T08:15:09Z",
"severity": "HIGH"
},
"details": "\nA CWE-502: Deserialization of Untrusted Data vulnerability exists in the Dashboard module that\ncould cause an interpretation of malicious payload data, potentially leading to remote code\nexecution when an attacker gets the user to open a malicious file. \n\n",
"id": "GHSA-r5pf-h3vv-f4pr",
"modified": "2024-04-04T04:49:40Z",
"published": "2023-06-14T09:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3001"
},
{
"type": "WEB",
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-164-02\u0026p_enDocType=Security+and+Safety+Notice\u0026p_File_Name=SEVD-2023-164-02.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R5PW-3HXJ-JMPQ
Vulnerability from github – Published: 2022-05-24 17:38 – Updated: 2022-05-24 17:38The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) before 7.9.1 contains a vulnerability in the ITM application server's WriteWindowMouseWithChunksV2 API. The vulnerability allows an anonymous remote attacker to execute arbitrary code with local administrator privileges. The vulnerability is caused by improper deserialization.
{
"affected": [],
"aliases": [
"CVE-2020-10656"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-01-06T14:15:00Z",
"severity": "CRITICAL"
},
"details": "The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) before 7.9.1 contains a vulnerability in the ITM application server\u0027s WriteWindowMouseWithChunksV2 API. The vulnerability allows an anonymous remote attacker to execute arbitrary code with local administrator privileges. The vulnerability is caused by improper deserialization.",
"id": "GHSA-r5pw-3hxj-jmpq",
"modified": "2022-05-24T17:38:04Z",
"published": "2022-05-24T17:38:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10656"
},
{
"type": "WEB",
"url": "https://www.proofpoint.com/us/blog"
},
{
"type": "WEB",
"url": "https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2020-0003"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-R5PW-WRG5-WRFP
Vulnerability from github – Published: 2023-12-14 15:30 – Updated: 2023-12-14 15:30IBM i Access Client Solutions 1.1.2 through 1.1.4 and 1.1.4.3 through 1.1.9.3 could allow an attacker to execute remote code. Due to improper authority checks the attacker could perform operations on the PC under the user's authority. IBM X-Force ID: 268273.
{
"affected": [],
"aliases": [
"CVE-2023-45185"
],
"database_specific": {
"cwe_ids": [
"CWE-502",
"CWE-863"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-14T14:15:42Z",
"severity": "HIGH"
},
"details": "IBM i Access Client Solutions 1.1.2 through 1.1.4 and 1.1.4.3 through 1.1.9.3 could allow an attacker to execute remote code. Due to improper authority checks the attacker could perform operations on the PC under the user\u0027s authority. IBM X-Force ID: 268273.",
"id": "GHSA-r5pw-wrg5-wrfp",
"modified": "2023-12-14T15:30:22Z",
"published": "2023-12-14T15:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45185"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/268273"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7091942"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-R5Q9-WMFC-68M2
Vulnerability from github – Published: 2022-05-24 19:04 – Updated: 2022-05-24 19:04In Invoice Ninja before 4.4.0, there is an unsafe call to unserialize() in app/Ninja/Repositories/AccountRepository.php that may allow an attacker to deserialize arbitrary PHP classes. In certain contexts, this can result in remote code execution. The attacker's input must be hosted at http://www.geoplugin.net (cleartext HTTP), and thus a successful attack requires spoofing that site or obtaining control of it.
{
"affected": [],
"aliases": [
"CVE-2021-33898"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-06T23:15:00Z",
"severity": "HIGH"
},
"details": "In Invoice Ninja before 4.4.0, there is an unsafe call to unserialize() in app/Ninja/Repositories/AccountRepository.php that may allow an attacker to deserialize arbitrary PHP classes. In certain contexts, this can result in remote code execution. The attacker\u0027s input must be hosted at http://www.geoplugin.net (cleartext HTTP), and thus a successful attack requires spoofing that site or obtaining control of it.",
"id": "GHSA-r5q9-wmfc-68m2",
"modified": "2022-05-24T19:04:16Z",
"published": "2022-05-24T19:04:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33898"
},
{
"type": "WEB",
"url": "https://github.com/invoiceninja/invoiceninja/issues/5909"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-R5WR-PC6Q-X28C
Vulnerability from github – Published: 2024-12-18 21:30 – Updated: 2024-12-18 21:30A deserialization of untrusted data vulnerability exists in NI DAQExpress that may result in remote code execution. Successful exploitation requires an attacker to get a user to open a specially crafted project file. This vulnerability affects DAQExpress 5.1 and prior versions. Please note that DAQExpress is an EOL product and will not receive any updates.
{
"affected": [],
"aliases": [
"CVE-2024-12741"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-18T20:15:22Z",
"severity": "HIGH"
},
"details": "A deserialization of untrusted data vulnerability exists in NI DAQExpress that may result in remote code execution. Successful exploitation requires an attacker to get a user to open a specially crafted project file. This vulnerability affects DAQExpress 5.1 and prior versions. \u00a0Please note that DAQExpress is an EOL product and will not receive any updates.",
"id": "GHSA-r5wr-pc6q-x28c",
"modified": "2024-12-18T21:30:55Z",
"published": "2024-12-18T21:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-12741"
},
{
"type": "WEB",
"url": "https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000kFD7SAM\u0026l=en-US"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/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-R622-C48H-H6QQ
Vulnerability from github – Published: 2026-06-09 09:32 – Updated: 2026-06-09 09:32The Blocksy theme for WordPress is vulnerable to PHP Object Injection leading to Remote Code Execution via the 'blocksy_meta' REST API field and the V200 database migration in versions up to and including 2.1.35. This is due to insufficient input sanitization in the blocksy_sanitize_post_meta_options() function, which only blocks values containing '<' or '>' and does not prevent serialized PHP object strings from being stored in post meta, combined with the SearchReplacer::run_recursively() function unconditionally deserializing all string values via @unserialize() during migration without restricting allowed classes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a serialized Blocksy\RaiiPattern object into post meta that, when the V200 migration runs on an upgraded site, is deserialized and triggers RaiiPattern::__destruct(), which executes arbitrary PHP callables via call_user_func().
{
"affected": [],
"aliases": [
"CVE-2026-8365"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T09:16:31Z",
"severity": "HIGH"
},
"details": "The Blocksy theme for WordPress is vulnerable to PHP Object Injection leading to Remote Code Execution via the \u0027blocksy_meta\u0027 REST API field and the V200 database migration in versions up to and including 2.1.35. This is due to insufficient input sanitization in the blocksy_sanitize_post_meta_options() function, which only blocks values containing \u0027\u003c\u0027 or \u0027\u003e\u0027 and does not prevent serialized PHP object strings from being stored in post meta, combined with the SearchReplacer::run_recursively() function unconditionally deserializing all string values via @unserialize() during migration without restricting allowed classes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a serialized Blocksy\\RaiiPattern object into post meta that, when the V200 migration runs on an upgraded site, is deserialized and triggers RaiiPattern::__destruct(), which executes arbitrary PHP callables via call_user_func().",
"id": "GHSA-r622-c48h-h6qq",
"modified": "2026-06-09T09:32:07Z",
"published": "2026-06-09T09:32:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8365"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/2.1.35/admin/helpers/meta-boxes.php#L104"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/2.1.35/admin/helpers/validator.php#L75"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/2.1.35/inc/classes/db-versioning/utils/db-search-replacer.php#L98"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/2.1.35/inc/classes/raii.php#L12"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/2.1.41/admin/helpers/meta-boxes.php#L104"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/2.1.41/admin/helpers/validator.php#L75"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/2.1.41/inc/classes/db-versioning/utils/db-search-replacer.php#L98"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/2.1.41/inc/classes/raii.php#L12"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/trunk/admin/helpers/meta-boxes.php#L104"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/trunk/admin/helpers/validator.php#L75"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/trunk/inc/classes/db-versioning/utils/db-search-replacer.php#L98"
},
{
"type": "WEB",
"url": "https://themes.trac.wordpress.org/browser/blocksy/trunk/inc/classes/raii.php#L12"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/fd216743-ce8d-4632-9fd1-d63502c2dfcd?source=cve"
}
],
"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-R63J-4GXH-8M32
Vulnerability from github – Published: 2022-05-24 16:46 – Updated: 2024-04-04 00:49Synacor Zimbra Collaboration Suite 8.7.x through 8.8.11 allows insecure object deserialization in the IMAP component.
{
"affected": [],
"aliases": [
"CVE-2019-6980"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-05-29T22:29:00Z",
"severity": "CRITICAL"
},
"details": "Synacor Zimbra Collaboration Suite 8.7.x through 8.8.11 allows insecure object deserialization in the IMAP component.",
"id": "GHSA-r63j-4gxh-8m32",
"modified": "2024-04-04T00:49:39Z",
"published": "2022-05-24T16:46:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6980"
},
{
"type": "WEB",
"url": "https://bugzilla.zimbra.com/show_bug.cgi?id=109097"
},
{
"type": "WEB",
"url": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories"
}
],
"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-R695-7VR9-JGC2
Vulnerability from github – Published: 2021-12-09 19:16 – Updated: 2022-02-08 21:37FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.apache.tomcat.dbcp.dbcp.datasources.SharedPoolDataSource.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "com.fasterxml.jackson.core:jackson-databind"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.9.10.8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-36187"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2021-03-18T23:23:27Z",
"nvd_published_at": "2021-01-06T23:15:00Z",
"severity": "HIGH"
},
"details": "FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.apache.tomcat.dbcp.dbcp.datasources.SharedPoolDataSource.",
"id": "GHSA-r695-7vr9-jgc2",
"modified": "2022-02-08T21:37:40Z",
"published": "2021-12-09T19:16:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36187"
},
{
"type": "WEB",
"url": "https://github.com/FasterXML/jackson-databind/issues/2997"
},
{
"type": "WEB",
"url": "https://github.com/FasterXML/jackson-databind/commit/3e8fa3beea49ea62109df9e643c9cb678dabdde1"
},
{
"type": "WEB",
"url": "https://cowtowncoder.medium.com/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062"
},
{
"type": "PACKAGE",
"url": "https://github.com/FasterXML/jackson-databind"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00025.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20210205-0005"
},
{
"type": "WEB",
"url": "https://www.oracle.com//security-alerts/cpujul2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2022.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2022.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
}
],
"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"
}
],
"summary": "Unsafe Deserialization in jackson-databind"
}
Mitigation
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
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
Explicitly define a final object() to prevent deserialization.
Mitigation
- 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
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
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
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.