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.
5346 vulnerabilities reference this CWE, most recent first.
CVE-2026-49740 (GCVE-0-2026-49740)
Vulnerability from cvelistv5 – Published: 2026-06-09 10:53 – Updated: 2026-07-15 12:49
VLAI
EPSS
VEX
Title
TYPO3 CMS - Insecure Deserialization in Core API
Summary
TYPO3's cache frontend (VariableFrontend) and persistent key-value store (Registry) deserialized PHP payloads without integrity validation or class restrictions. An attacker with write access to the underlying storage backend (cache store or sys_registry database table) could inject a crafted serialized payload to trigger PHP Object Injection, potentially exploiting a gadget chain to achieve Remote Code Execution or other high-impact effects. Exploiting this vulnerability requires direct local write access to the storage, such as the SQL database or file system. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 13:40 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://typo3.org/security/advisory/typo3-core-sa… | vendor-advisory |
| https://github.com/TYPO3/typo3/commit/48bcf24f31f… | patch |
| https://github.com/TYPO3/typo3/commit/87cd7c5b710… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TYPO3 | TYPO3 CMS |
Affected:
0 , < 10.4.57
(semver)
Affected: 11.0.0 , < 11.5.51 (semver) Affected: 12.0.0 , < 12.4.46 (semver) Affected: 13.0.0 , < 13.4.31 (semver) Affected: 14.0.0 , < 14.3.3 (semver) cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* |
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CVE-2026-49400 (GCVE-0-2026-49400)
Vulnerability from cvelistv5 – Published: 2026-09-14 17:15 – Updated: 2026-09-16 15:21
VLAI
EPSS
VEX
Title
October CMS: PHP Object Injection via Backend Widget Session Storage
Summary
October System provides the system module for October Content Management System. Prior to versions 3.7.17 and 4.2.21, the backend `SessionMaker` trait stored widget session state as `base64(serialize(...))` and consumed it with `unserialize()` without an `allowed_classes` restriction. Any code path that could write to a `widget.*` session key with attacker-controlled bytes could trigger PHP object injection the next time the widget read its session state, allowing instantiation of arbitrary classes and reachable PHP gadget chains. This issue only affects installations running with `cms.safe_mode` enabled. Safe Mode is a niche opt-in feature, primarily used for demo installations and multi-tenant or shared-editor scenarios where untrusted users are deliberately granted access to the CMS markup editor. In standard production deployments Safe Mode is off, backend access is restricted to trusted administrators, and a markup editor can already execute arbitrary PHP directly. The session-write path that reaches this sink is gated by the Safe Mode sandbox, so installations without Safe Mode enabled are not exposed. Scope of impact is narrow even with Safe Mode enabled. The standard backend code paths that populate widget session state (search terms, sort options, selected IDs, filter values) wrap the input inside a known array shape before serializing, so user-supplied values never reach `unserialize()` as a controllable serialized payload. Exploitation requires the Safe Mode session-write path together with a suitable PHP gadget chain reachable from the installed dependency set. The hardening below removes the underlying object-injection sink so the class of issue is closed off regardless. The vulnerability has been patched in v3.7.17 and v4.2.21. Two changes were applied. `Backend\Traits\SessionMaker` now stores widget session state as plain JSON instead of `base64(serialize(...))`, eliminating the object-injection sink entirely for new writes. Reads transparently fall back to the legacy format for one upgrade cycle so existing sessions retain their saved widget state. The legacy `unserialize()` fallback path now sets `allowed_classes => false`, so even values written before the upgrade cannot instantiate objects. As a workaround, restrict CMS markup editing access to fully trusted administrators only, the standard October CMS recommendation for any deployment.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 15:21 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/octobercms/october/security/ad… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| octobercms | october |
Affected:
< 3.7.17
Affected: >= 4.0.0, < 4.2.23 |
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CVE-2026-49286 (GCVE-0-2026-49286)
Vulnerability from cvelistv5 – Published: 2026-06-19 17:03 – Updated: 2026-06-22 14:23
VLAI
EPSS
VEX
Title
PhpWeasyPrint vulnerable to PHAR deserialization via output filename (CVE-2023-28115 case-insensitive bypass)
Summary
PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, `pontedilana/php-weasyprint` guarded the output filename against the `phar://` stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so `PHAR://`, `Phar://`, etc. bypass the check and reach `fileExists()` (`file_exists()`) in `prepareOutput()`. On PHP 7 (which the library still supports — PHP 7.4+), this triggers deserialization of a crafted PHAR archive's metadata, leading to remote code execution. This is the patch-bypass of CVE-2023-28115. The same issue and fix were handled upstream in KnpLabs/snappy (GHSA-92rv-4j2h-8mjj). PhpWeasyPrint version 2.6.0 contains a patch for the issue.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 14:22 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/pontedilana/php-weasyprint/sec… | x_refsource_CONFIRM |
| https://github.com/KnpLabs/snappy/security/adviso… | x_refsource_MISC |
| https://github.com/pontedilana/php-weasyprint/com… | x_refsource_MISC |
| https://github.com/pontedilana/php-weasyprint/rel… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pontedilana | php-weasyprint |
Affected:
< 2.6.0
|
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CVE-2026-49121 (GCVE-0-2026-49121)
Vulnerability from cvelistv5 – Published: 2026-06-01 17:09 – Updated: 2026-07-15 00:47 X_Open Source
VLAI
EPSS
VEX
Title
AI Tensor Engine for ROCm (AITER) 0.1.14 Unauthenticated RCE via MessageQueue.recv() Pickle Deserialization
Summary
AI Tensor Engine for ROCm (AITER) through 0.1.14 contains an unauthenticated remote code execution vulnerability in the MessageQueue.recv() function within shm_broadcast.py that allows unauthenticated remote attackers to execute arbitrary code by sending a malicious pickle payload to a ZMQ SUB socket with no authentication, HMAC, or format validation. Attackers who can reach the writer XPUB endpoint on the cluster network or supply a forged Handle with an attacker-controlled remote_subscribe_addr can deliver a crafted pickle payload that executes arbitrary code simultaneously as the inference worker process on every remote reader worker.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 19:05 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/ROCm/aiter/issues/3076 | issue-tracking |
| https://github.com/ROCm/aiter/pull/3170 | issue-tracking |
| https://www.vulncheck.com/advisories/ai-tensor-en… | third-party-advisory |
| https://access.redhat.com/security/cve/CVE-2026-49121 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2483882 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| ROCm | aiter |
Affected:
0 , ≤ 0.1.14
(semver)
cpe:2.3:a:amd:aiter:*:*:*:*:*:*:*:* |
|
| Red Hat | Red Hat AI Inference Server |
cpe:/a:redhat:ai_inference_server:3
|
|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 |
cpe:/a:redhat:enterprise_linux_ai:3
|
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
|
Date Public
2026-05-07 00:00
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CVE-2026-49109 (GCVE-0-2026-49109)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:19 – Updated: 2026-06-16 14:35
VLAI
EPSS
VEX
Title
WordPress Integration for Salesforce and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms plugin <= 1.4.3 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Integration for Salesforce and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms <= 1.4.3 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 14:35 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| crm perks | Integration for Salesforce and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms |
Affected:
n/a , ≤ 1.4.3
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CVE-2026-49108 (GCVE-0-2026-49108)
Vulnerability from cvelistv5 – Published: 2026-06-17 12:47 – Updated: 2026-06-17 14:02
VLAI
EPSS
VEX
Title
WordPress Moderno theme < 1.43 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Moderno < 1.43 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 14:01 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/m… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| park_of_ideas | Moderno |
Affected:
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CVE-2026-49107 (GCVE-0-2026-49107)
Vulnerability from cvelistv5 – Published: 2026-06-17 09:51 – Updated: 2026-06-17 15:34
VLAI
EPSS
VEX
Title
WordPress Thrive Apprentice plugin < 10.8.10.2 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Thrive Apprentice < 10.8.10.2 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 15:20 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Thrive Themes | Thrive Apprentice |
Affected:
n/a , < 10.8.10.2
(custom)
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CVE-2026-49106 (GCVE-0-2026-49106)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:19 – Updated: 2026-06-16 12:22
VLAI
EPSS
VEX
Title
WordPress Integration for Contact Form 7 and Constant Contact plugin <= 1.1.6 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Integration for Contact Form 7 and Constant Contact <= 1.1.6 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 12:22 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CRM Perks | Integration for Contact Form 7 and Constant Contact |
Affected:
n/a , ≤ 1.1.6
(custom)
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CVE-2026-49105 (GCVE-0-2026-49105)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:19 – Updated: 2026-06-15 21:38
VLAI
EPSS
VEX
Title
WordPress WP Zendesk for Contact Form 7, WPForms, Elementor, Formidable and Ninja Forms plugin <= 1.1.4 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in WP Zendesk for Contact Form 7, WPForms, Elementor, Formidable and Ninja Forms <= 1.1.4 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 21:38 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CRM Perks | WP Zendesk for Contact Form 7, WPForms, Elementor, Formidable and Ninja Forms |
Affected:
n/a , ≤ 1.1.4
(custom)
|
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CVE-2026-49104 (GCVE-0-2026-49104)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:19 – Updated: 2026-06-16 12:53
VLAI
EPSS
VEX
Title
WordPress Integration for Keap/infusionsoft and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms plugin <= 1.2.1 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Integration for Keap/infusionsoft and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms <= 1.2.1 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 12:51 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CRM Perks | Integration for Keap/infusionsoft and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms |
Affected:
n/a , ≤ 1.2.1
(custom)
|
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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.