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.
4852 vulnerabilities reference this CWE, most recent first.
CVE-2021-3838 (GCVE-0-2021-3838)
Vulnerability from cvelistv5 – Published: 2024-11-15 10:51 – Updated: 2024-11-18 14:41
VLAI
EPSS
VEX
Title
PHAR Deserialization in dompdf/dompdf
Summary
DomPDF before version 2.0.0 is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the file_get_contents() function. An attacker who can upload files of any type to the server can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution, especially when DOMPdf is used with frameworks with documented POP chains like Laravel or vulnerable developer code.
Severity
9.8 (Critical)
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| dompdf | dompdf/dompdf |
Affected:
unspecified , < 2.0.0
(custom)
|
|
| dompdf | dompdf |
Affected:
0 , < 2.0.0
(custom)
cpe:2.3:a:dompdf:dompdf:*:beta3:*:*:*:*:*:* |
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CVE-2021-3040 (GCVE-0-2021-3040)
Vulnerability from cvelistv5 – Published: 2021-06-10 12:33 – Updated: 2024-09-16 18:23
VLAI
EPSS
VEX
Title
Bridgecrew Checkov: Unsafe deserialization of Terraform files allows code execution
Summary
An unsafe deserialization vulnerability in Bridgecrew Checkov by Prisma Cloud allows arbitrary code execution when processing a malicious terraform file. This issue impacts Checkov 2.0 versions earlier than Checkov 2.0.139. Checkov 1.0 versions are not impacted.
Severity
6.7 (Medium)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2021-3040 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | Bridgecrew Checkov |
Unaffected:
1.0 all
Affected: 2.0 , < 2.0.139 (custom) |
Date Public
2021-06-09 00:00
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CVE-2021-3035 (GCVE-0-2021-3035)
Vulnerability from cvelistv5 – Published: 2021-04-20 03:15 – Updated: 2024-09-17 03:17
VLAI
EPSS
VEX
Title
Bridgecrew Checkov: Unsafe deserialization of Terraform files allows code execution
Summary
An unsafe deserialization vulnerability in Bridgecrew Checkov by Prisma Cloud allows arbitrary code execution when processing a malicious terraform file. This issue impacts Checkov 2.0 versions earlier than Checkov 2.0.26. Checkov 1.0 versions are not impacted.
Severity
6.7 (Medium)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2021-3035 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | Bridgecrew Checkov |
Unaffected:
1.0 all
Affected: 2.0 , < 2.0.26 (custom) |
Date Public
2021-04-14 00:00
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CVE-2021-1415 (GCVE-0-2021-1415)
Vulnerability from cvelistv5 – Published: 2021-04-08 04:06 – Updated: 2024-11-08 23:27
VLAI
EPSS
VEX
Title
Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Authenticated Remote Code Execution Vulnerabilities
Summary
Multiple vulnerabilities in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code with elevated privileges equivalent to the web service process on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Small Business RV Series Router Firmware |
Affected:
n/a
|
Date Public
2021-04-07 00:00
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CVE-2021-1414 (GCVE-0-2021-1414)
Vulnerability from cvelistv5 – Published: 2021-04-08 04:06 – Updated: 2024-11-08 23:27
VLAI
EPSS
VEX
Title
Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Authenticated Remote Code Execution Vulnerabilities
Summary
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Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
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|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Small Business RV Series Router Firmware |
Affected:
n/a
|
Date Public
2021-04-07 00:00
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CVE-2021-1413 (GCVE-0-2021-1413)
Vulnerability from cvelistv5 – Published: 2021-04-08 04:06 – Updated: 2024-11-08 23:28
VLAI
EPSS
VEX
Title
Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Authenticated Remote Code Execution Vulnerabilities
Summary
Multiple vulnerabilities in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code with elevated privileges equivalent to the web service process on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Small Business RV Series Router Firmware |
Affected:
n/a
|
Date Public
2021-04-07 00:00
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CVE-2020-37071 (GCVE-0-2020-37071)
Vulnerability from cvelistv5 – Published: 2026-02-03 22:01 – Updated: 2026-07-15 01:24
VLAI
EPSS
VEX
Title
CraftCMS 3 vCard Plugin 1.0.0 - Remote Code Execution
Summary
CraftCMS 3 vCard Plugin 1.0.0 contains a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary PHP code through a crafted payload. Attackers can generate a malicious serialized payload that triggers remote code execution by exploiting the plugin's vCard download functionality with a specially crafted request.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48492 | exploit |
| https://craftcms.com/ | product |
| https://plugins.craftcms.com/vcard | product |
| https://gitlab.com/wguest/craftcms-vcard-exploit | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/craftcms-vca… | third-party-advisory |
Date Public
2020-05-18 00:00
Credits
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CVE-2020-36727 (GCVE-0-2020-36727)
Vulnerability from cvelistv5 – Published: 2023-06-07 01:51 – Updated: 2026-04-08 17:27
VLAI
EPSS
VEX
Title
Newsletter Manager <= 1.5.1 - Insecure Deserialization
Summary
The Newsletter Manager plugin for WordPress is vulnerable to insecure deserialization in versions up to, and including, 1.5.1. This is due to unsanitized input from the 'customFieldsDetails' parameter being passed through a deserialization function. This potentially makes it possible for unauthenticated attackers to inject a serialized PHP object.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| f1logic | Newsletter Manager |
Affected:
0 , ≤ 1.5.1
(semver)
|
Credits
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CVE-2020-36726 (GCVE-0-2020-36726)
Vulnerability from cvelistv5 – Published: 2023-06-07 01:51 – Updated: 2026-04-08 17:27
VLAI
EPSS
VEX
Title
Ultimate Reviews < 2.1.33 - PHP Object Injection
Summary
The Ultimate Reviews plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.1.32 via deserialization of untrusted input in several vulnerable functions. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| rustaurius | Ultimate Reviews |
Affected:
0 , < 2.1.33
(semver)
|
Credits
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CVE-2020-36718 (GCVE-0-2020-36718)
Vulnerability from cvelistv5 – Published: 2023-06-07 01:51 – Updated: 2026-04-08 17:12
VLAI
EPSS
VEX
Title
GDPR CCPA Compliance Support <= 2.3 - PHP Object Injection
Summary
The GDPR CCPA Compliance Support plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.3 via deserialization of untrusted input "njt_gdpr_allow_permissions" value. This allows unauthenticated attackers to inject a PHP Object.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ninjateam | GDPR CCPA Compliance & Cookie Consent Banner |
Affected:
0 , ≤ 2.3
(semver)
|
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"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:12:40.753Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a2871261-3231-4a52-9a38-bb3caf461e7d?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/2408938"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/2411356/ninja-gdpr-compliance"
},
{
"url": "https://blog.nintechnet.com/gdpr-ccpa-compliance-support-plugin-fixed-insecure-deserialization-vulnerability/"
},
{
"url": "https://wordpress.org/plugins/ninja-gdpr-compliance/#developers"
},
{
"url": "https://wpscan.com/vulnerability/92f1d6fb-c665-419e-a13b-688b1df6c395"
}
],
"timeline": [
{
"lang": "en",
"time": "2020-11-03T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "GDPR CCPA Compliance Support \u003c= 2.3 - PHP Object Injection"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2020-36718",
"datePublished": "2023-06-07T01:51:35.736Z",
"dateReserved": "2023-06-06T13:04:55.503Z",
"dateUpdated": "2026-04-08T17:12:40.753Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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.