Common Weakness Enumeration
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CWE-502
Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
CVE-2026-9497 (GCVE-0-2026-9497)
Vulnerability from cvelistv5 – Published: 2026-05-25 19:45 – Updated: 2026-05-26 15:08
VLAI
Title
changmingxie tcc-transaction Fastjson AutoType REST API Fastjson.parseObject deserialization
Summary
A flaw has been found in changmingxie tcc-transaction up to 2.1.0. This issue affects the function Fastjson.parseObject of the component Fastjson AutoType REST API. This manipulation causes deserialization. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/365480 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/365480/cti | signaturepermissions-required |
| https://vuldb.com/submit/814092 | third-party-advisory |
| https://github.com/Ku4D3/bug_story/blob/main/repo… | related |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| changmingxie | tcc-transaction |
Affected:
2.0
Affected: 2.1.0 cpe:2.3:a:changmingxie:tcc-transaction:*:*:*:*:*:*:*:* |
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CVE-2026-9691 (GCVE-0-2026-9691)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 14:18
VLAI
Title
WordPress Integration for ActiveCampaign and Contact Form 7, WPForms, Elementor, Ninja Forms plugin <= 1.1.1 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Integration for ActiveCampaign and Contact Form 7, WPForms, Elementor, Ninja Forms <= 1.1.1 versions.
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
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CRM Perks | Integration for ActiveCampaign and Contact Form 7, WPForms, Elementor, Ninja Forms |
Affected:
n/a , ≤ 1.1.1
(custom)
|
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CVE-2026-9828 (GCVE-0-2026-9828)
Vulnerability from cvelistv5 – Published: 2026-05-28 12:52 – Updated: 2026-05-29 08:07
VLAI
Title
Logback deserialization whitelist bypass for java.lang and java.util
Summary
Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection albeit heavily restricted.
More precisely, an attacker able to influence serialized data sent to
SimpleSocketServer or SimpleSSLSocketServer can instantiate objects from
classes in the java.lang and java.util packages that are not explicitly
blocked.
Although deserialization is heavily restricted by HardenedObjectInputStream and no
practical way to achieve remote code execution or significant privilege
escalation has been identified, this issue constitutes a bypass of the
intended security restrictions.
This issue affects logback: through 1.5.32 inclusive.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of untrusted data
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| QOS.CH Sarl | logback |
Affected:
0 , ≤ 1.5.32
(maven)
Unaffected: 1.5.33 |
Date Public
2026-05-28 07:47
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Mitigation
Phases: Architecture and Design, Implementation
Description:
- 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
Phase: Implementation
Description:
- 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
Phase: Implementation
Description:
- Explicitly define a final object() to prevent deserialization.
Mitigation
Phases: Architecture and Design, Implementation
Description:
- 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
Phase: Implementation
Description:
- 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
Phases: Architecture and Design, Implementation
Description:
- 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 ID: MIT-29
Phase: Operation
Strategy: Firewall
Description:
- 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.