Common Weakness Enumeration
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.
4836 vulnerabilities reference this CWE, most recent first.
GHSA-FX7F-RJQJ-52PJ
Vulnerability from github – Published: 2022-05-24 19:19 – Updated: 2022-06-22 18:24
VLAI
Summary
Deserialization of Untrusted Data in Spring AMQP
Details
In Spring AMQP versions 2.2.0 - 2.2.18 and 2.3.0 - 2.3.10, the Spring AMQP Message object, in its toString() method, will deserialize a body for a message with content type application/x-java-serialized-object. It is possible to construct a malicious java.util.Dictionary object that can cause 100% CPU usage in the application if the toString() method is called.
Severity
6.5 (Medium)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.2.18"
},
"package": {
"ecosystem": "Maven",
"name": "org.springframework.amqp:spring-amqp"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.19"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.3.10"
},
"package": {
"ecosystem": "Maven",
"name": "org.springframework.amqp:spring-amqp"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.11"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-22097"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2022-06-22T18:24:49Z",
"nvd_published_at": "2021-10-28T16:15:00Z",
"severity": "MODERATE"
},
"details": "In Spring AMQP versions 2.2.0 - 2.2.18 and 2.3.0 - 2.3.10, the Spring AMQP Message object, in its toString() method, will deserialize a body for a message with content type application/x-java-serialized-object. It is possible to construct a malicious java.util.Dictionary object that can cause 100% CPU usage in the application if the toString() method is called.",
"id": "GHSA-fx7f-rjqj-52pj",
"modified": "2022-06-22T18:24:49Z",
"published": "2022-05-24T19:19:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22097"
},
{
"type": "WEB",
"url": "https://tanzu.vmware.com/security/cve-2021-22097"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Deserialization of Untrusted Data in Spring AMQP"
}
GHSA-FX7M-48GF-38CM
Vulnerability from github – Published: 2022-03-18 00:01 – Updated: 2022-03-24 00:00
VLAI
Details
Deserialization of untrusted data in Veeam Agent for Windows 2.0, 2.1, 2.2, 3.0.2, 4.x, and 5.x allows local users to run arbitrary code with local system privileges.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-26503"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-17T17:15:00Z",
"severity": "HIGH"
},
"details": "Deserialization of untrusted data in Veeam Agent for Windows 2.0, 2.1, 2.2, 3.0.2, 4.x, and 5.x allows local users to run arbitrary code with local system privileges.",
"id": "GHSA-fx7m-48gf-38cm",
"modified": "2022-03-24T00:00:24Z",
"published": "2022-03-18T00:01:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26503"
},
{
"type": "WEB",
"url": "https://veeam.com"
},
{
"type": "WEB",
"url": "https://www.veeam.com/kb4289"
}
],
"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-FX9H-H562-86QX
Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2024-04-04 02:45
VLAI
Details
An attacker who has already compromised the local system could use TinyWall Controller to gain additional privileges by attaching a debugger to the running process and modifying the code in memory. Vulnerability fixed in version 2.1.13.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2019-19470"
],
"database_specific": {
"cwe_ids": [
"CWE-269",
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-12-30T18:15:00Z",
"severity": "HIGH"
},
"details": "An attacker who has already compromised the local system could use TinyWall Controller to gain additional privileges by attaching a debugger to the running process and modifying the code in memory. Vulnerability fixed in version 2.1.13.",
"id": "GHSA-fx9h-h562-86qx",
"modified": "2024-04-04T02:45:53Z",
"published": "2022-05-24T17:05:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19470"
},
{
"type": "WEB",
"url": "https://gist.github.com/pylorak/7df52c9325614676e07782dbe4e81582"
},
{
"type": "WEB",
"url": "https://www.wilderssecurity.com/threads/beta-testing-tinywall.309739/page-62#post-2882843"
}
],
"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-FXPH-Q3J8-MV87
Vulnerability from github – Published: 2020-01-06 18:43 – Updated: 2022-04-01 20:26
VLAI
Summary
Deserialization of Untrusted Data in Log4j
Details
In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.
Severity
9.8 (Critical)
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j"
},
"ranges": [
{
"events": [
{
"introduced": "2.0"
},
{
"fixed": "2.8.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j-core"
},
"ranges": [
{
"events": [
{
"introduced": "2.0"
},
{
"fixed": "2.8.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-5645"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2019-12-27T22:02:28Z",
"nvd_published_at": "2017-04-17T21:59:00Z",
"severity": "CRITICAL"
},
"details": "In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.",
"id": "GHSA-fxph-q3j8-mv87",
"modified": "2022-04-01T20:26:51Z",
"published": "2020-01-06T18:43:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5645"
},
{
"type": "WEB",
"url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rd5dbeee4808c0f2b9b51479b50de3cc6adb1072c332a200d9107f13e@%3Cissues.activemq.apache.org%3E"
},
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"url": "https://lists.apache.org/thread.html/rcbb79023a7c8494cb389cd3d95420fa9e0d531ece0b780b8c1f99422@%3Ccommits.doris.apache.org%3E"
},
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},
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},
{
"type": "WEB",
"url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2022.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20181107-0002"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20180726-0002"
},
{
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"url": "https://lists.apache.org/thread.html/rf2567488cfc9212b42e34c6393cfa1c14e30e4838b98dda84d71041f@%3Cdev.tika.apache.org%3E"
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"url": "https://access.redhat.com/errata/RHSA-2019:1545"
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},
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},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:3244"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2017:2889"
},
{
"type": "WEB",
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},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2811"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2017:2810"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2017:2809"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2808"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2638"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2637"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2636"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2017:2635"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2017:2633"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2017:2423"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2017:1802"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2017:1801"
},
{
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},
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{
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"url": "https://lists.apache.org/thread.html/44491fb9cc19acc901f7cff34acb7376619f15638439416e3e14761c@%3Cdev.tika.apache.org%3E"
},
{
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"url": "https://lists.apache.org/thread.html/277b4b5c2b0e06a825ccec565fa65bd671f35a4d58e3e2ec5d0618e1@%3Cdev.tika.apache.org%3E"
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{
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},
{
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"url": "https://issues.apache.org/jira/browse/LOG4J2-1863"
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{
"type": "PACKAGE",
"url": "https://github.com/apache/logging-log4j2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2019/12/19/2"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/97702"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1040200"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1041294"
}
],
"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"
}
],
"summary": "Deserialization of Untrusted Data in Log4j"
}
GHSA-FXRF-CMV6-RM5J
Vulnerability from github – Published: 2022-05-14 04:01 – Updated: 2025-04-20 03:49
VLAI
Details
In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHP's unserialize() in vB_Library_Template's cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2017-17672"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-12-14T00:29:00Z",
"severity": "CRITICAL"
},
"details": "In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHP\u0027s unserialize() in vB_Library_Template\u0027s cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates.",
"id": "GHSA-fxrf-cmv6-rm5j",
"modified": "2025-04-20T03:49:59Z",
"published": "2022-05-14T04:01:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17672"
},
{
"type": "WEB",
"url": "https://blogs.securiteam.com/index.php/archives/3573"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/43362"
}
],
"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-FXW2-WP4X-FVP5
Vulnerability from github – Published: 2022-05-24 16:54 – Updated: 2024-04-04 01:46
VLAI
Details
The patreon-connect plugin before 1.2.2 for WordPress has Object Injection.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2018-20984"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-08-22T14:15:00Z",
"severity": "CRITICAL"
},
"details": "The patreon-connect plugin before 1.2.2 for WordPress has Object Injection.",
"id": "GHSA-fxw2-wp4x-fvp5",
"modified": "2024-04-04T01:46:12Z",
"published": "2022-05-24T16:54:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20984"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/patreon-connect/#developers"
}
],
"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-FXWH-C962-39R5
Vulnerability from github – Published: 2025-04-17 18:31 – Updated: 2026-04-01 18:34
VLAI
Details
Deserialization of Untrusted Data vulnerability in Climax Themes Kata Plus allows Object Injection. This issue affects Kata Plus: from n/a through 1.5.2.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2025-32572"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-17T16:15:44Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in Climax Themes Kata Plus allows Object Injection. This issue affects Kata Plus: from n/a through 1.5.2.",
"id": "GHSA-fxwh-c962-39r5",
"modified": "2026-04-01T18:34:49Z",
"published": "2025-04-17T18:31:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32572"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/kata-plus/vulnerability/wordpress-kata-plus-addons-for-elementor-widgets-extensions-and-templates-plugin-1-5-0-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-G2CQ-VGF6-MC3Q
Vulnerability from github – Published: 2024-02-09 03:33 – Updated: 2024-02-09 03:33
VLAI
Details
A vulnerability, which was classified as critical, has been found in PHPEMS up to 1.0. Affected by this issue is the function index of the file app/weixin/controller/index.api.php. The manipulation of the argument picurl leads to deserialization. The exploit has been disclosed to the public and may be used. VDB-253226 is the identifier assigned to this vulnerability.
Severity
6.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-1353"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-09T01:15:09Z",
"severity": "MODERATE"
},
"details": "A vulnerability, which was classified as critical, has been found in PHPEMS up to 1.0. Affected by this issue is the function index of the file app/weixin/controller/index.api.php. The manipulation of the argument picurl leads to deserialization. The exploit has been disclosed to the public and may be used. VDB-253226 is the identifier assigned to this vulnerability.",
"id": "GHSA-g2cq-vgf6-mc3q",
"modified": "2024-02-09T03:33:11Z",
"published": "2024-02-09T03:33:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1353"
},
{
"type": "WEB",
"url": "https://note.zhaoj.in/share/nxGzfEB6fFVY"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.253226"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.253226"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-G2QW-6VRR-V6PQ
Vulnerability from github – Published: 2022-11-14 19:00 – Updated: 2024-08-02 10:29
VLAI
Summary
Apache Jena vulnerable to Deserialization of Untrusted Data
Details
Apache Jena SDB 3.17.0 and earlier is vulnerable to a JDBC Deserialisation attack if the attacker is able to control the JDBC URL used or cause the underlying database server to return malicious data. The mySQL JDBC driver in particular is known to be vulnerable to this class of attack. As a result an application using Apache Jena SDB can be subject to RCE when connected to a malicious database server. Apache Jena SDB has been EOL since December 2020 and users should migrate to alternative options e.g. Apache Jena TDB 2.
Severity
9.8 (Critical)
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.jena:jena-sdb"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.17.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-45136"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2022-11-17T17:47:30Z",
"nvd_published_at": "2022-11-14T16:15:00Z",
"severity": "CRITICAL"
},
"details": "Apache Jena SDB 3.17.0 and earlier is vulnerable to a JDBC Deserialisation attack if the attacker is able to control the JDBC URL used or cause the underlying database server to return malicious data. The mySQL JDBC driver in particular is known to be vulnerable to this class of attack. As a result an application using Apache Jena SDB can be subject to RCE when connected to a malicious database server. Apache Jena SDB has been EOL since December 2020 and users should migrate to alternative options e.g. Apache Jena TDB 2.",
"id": "GHSA-g2qw-6vrr-v6pq",
"modified": "2024-08-02T10:29:55Z",
"published": "2022-11-14T19:00:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-45136"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/jena"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/mc77cdl5stgjtjoldk467gdf756qjt31"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/11/14/5"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Apache Jena vulnerable to Deserialization of Untrusted Data"
}
GHSA-G2RF-PHPJ-M3M9
Vulnerability from github – Published: 2026-03-25 18:31 – Updated: 2026-03-25 21:30
VLAI
Details
Deserialization of Untrusted Data vulnerability in Miguel Useche JS Archive List jquery-archive-list-widget allows Object Injection.This issue affects JS Archive List: from n/a through <= 6.1.7.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-32513"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T17:17:03Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Miguel Useche JS Archive List jquery-archive-list-widget allows Object Injection.This issue affects JS Archive List: from n/a through \u003c= 6.1.7.",
"id": "GHSA-g2rf-phpj-m3m9",
"modified": "2026-03-25T21:30:35Z",
"published": "2026-03-25T18:31:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32513"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/jquery-archive-list-widget/vulnerability/wordpress-js-archive-list-plugin-6-1-7-php-object-injection-vulnerability?_s_id=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"
}
]
}
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.