Weakness (CWE)
CWE-502: Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
How to prevent it (7 mitigations)
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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.
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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.
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Implementation
Explicitly define a final object() to prevent deserialization.
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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.
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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.
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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.
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Operation
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].
Source: MITRE CWE-502
3,352 results · Feed
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High 8.1
WordPress Au Pair Agency - Babysitting & Nanny Theme theme <= 1.2.2 - Deserialization of untrusted data vulnerability
Deserialization of Untrusted Data vulnerability in axiomthemes Au Pair Agency - Babysitting & Nanny Theme au-pair-agency allows Object Injection.This issue affects Au Pair Agency - Babysitting & Nanny Theme: from n/a through <= 1.2.2.
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High 7.5
WordPress Podlove Web Player plugin <= 5.9.1 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in gerritvanaaken Podlove Web Player podlove-web-player allows Object Injection.This issue affects Podlove Web Player: from n/a through <= 5.9.1.
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High 8.8
WordPress PowerPress Podcasting plugin <= 11.15.10 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in blubrry PowerPress Podcasting powerpress allows Object Injection.This issue affects PowerPress Podcasting: from n/a through <= 11.15.10.
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Critical 9.8
WordPress Mounthood theme <= 1.3.2 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in axiomthemes Mounthood mounthood allows Object Injection.This issue affects Mounthood: from n/a through <= 1.3.2.
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Critical 9.8
WordPress Jardi theme <= 1.7.2 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in AncoraThemes Jardi jardi allows Object Injection.This issue affects Jardi: from n/a through <= 1.7.2.
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High 8.8
WordPress Dental Clinic theme <= 3.7 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in designthemes Dental Clinic dental allows Object Injection.This issue affects Dental Clinic: from n/a through <= 3.7.
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Critical 9.8
WordPress Estate theme <= 1.3.4 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in axiomthemes Estate estate allows Object Injection.This issue affects Estate: from n/a through <= 1.3.4.
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Critical 9.8
WordPress Equestrian Centre theme <= 1.5 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in ThemeREX Equestrian Centre equestrian-centre allows Object Injection.This issue affects Equestrian Centre: from n/a through <= 1.5.
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High 8.8
WordPress Secudeal Payments for Ecommerce plugin <= 1.1 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in maximsecudeal Secudeal Payments for Ecommerce secudeal-payments-for-ecommerce allows Object Injection.This issue affects Secudeal Payments for Ecommerce: from n/a through <= 1.1.
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Critical 9.8
WordPress Solaris theme <= 2.5 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in ThemeREX Solaris solaris allows Object Injection.This issue affects Solaris: from n/a through <= 2.5.
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Critical 9.8
WordPress Pets Club theme <= 2.3 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in ThemeREX Pets Club petclub allows Object Injection.This issue affects Pets Club: from n/a through <= 2.3.
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Critical 9.8
WordPress Handyman theme <= 1.4.7 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in AncoraThemes Handyman handyman-services allows Object Injection.This issue affects Handyman: from n/a through <= 1.4.7.
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Critical 9.8
WordPress Grand Wedding theme < 3.1.11 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in ThemeGoods Grand Wedding grandwedding allows Object Injection.This issue affects Grand Wedding: from n/a through < 3.1.11.
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Critical 9.8
WordPress Classter theme <= 2.5 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in ThemeREX Classter classter allows Object Injection.This issue affects Classter: from n/a through <= 2.5.
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Critical 10.0
Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability
A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device. This vulnerability is due to ins…
KEV Mar 19, 2026 -
High 8.9
Concrete CMS below 9.4.8 is vulnerable to stored deserialization leading to RCE in the Express Entry List block.
Concrete CMS below version 9.4.8 is vulnerable to Remote Code Execution by stored PHP object injection into the Express Entry List block via the columns parameter. An authenticated administrator can store attacker-controlled serialized data in block configura…
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Critical 9.2
Qwik affected by unauthenticated RCE via server$ Deserialization
Qwik is a performance focused javascript framework. qwik <=1.19.0 is vulnerable to RCE due to an unsafe deserialization vulnerability in the server$ RPC mechanism that allows any unauthenticated user to execute arbitrary code on the server with a single HTTP …
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Critical 9.8
An issue in Step-Video-T2V allows a remote attacker to execute arbitrary code via the /vae-api , /caption-api , feature…
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High 7.0
Chamilo: PHAR deserialization bypass
Chamilo is a learning management system. Prior to version 1.11.30, in the application, deserialization of data is performed, the data can be spoofed. An attacker can create objects of arbitrary classes, as well as fully control their properties, and thus modi…
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High 8.8
Chamilo: Deserialization of untrusted data in /plugin/vchamilo/views/import.php via POST configuration_file; POST course_path; POST home_path parameters
Chamilo is a learning management system. Prior to version 1.11.30, Chamilo is vulnerable to deserialization of untrusted data in /plugin/vchamilo/views/import.php via POST configuration_file; POST course_path; POST home_path parameters. This issue has been pa…
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High 8.7
Chamilo: Post-Auth Remote Code Execution
Chamilo is a learning management system. Chamillo is affected by a post-authentication phar unserialize which leads to a remote code execution (RCE) within versions 1.11.12 to 1.11.26. By abusing multiple supported features from the virtualization plugin vcha…
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Critical 9.8
e-Excellence｜U-Office Force - Insecure Deserialization
U-Office Force developed by e-Excellence has a Insecure Deserialization vulnerability, allowing unauthenticated remote attackers to execute arbitrary code on the server by sending maliciously crafted serialized content.
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High 7.5
WP Mail Logging <= 1.15.0 - Unauthenticated PHP Object Injection via Email Log Message Field
The WP Mail Logging plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.15.0 via deserialization of untrusted input from the email log message field. This is due to the `BaseModel` class constructor calling `mayb…
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Medium 6.5
Super Stage WP <= 1.0.1 - Unauthenticated PHP Object Injection
The Super Stage WP WordPress plugin through 1.0.1 unserializes user input via REQUEST, which could allow unauthenticated users to perform PHP Object Injection when a suitable gadget is present on the blog.
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Low 2.0
Unsafe Deserialization of Erlang Terms in hex_core
Uncontrolled Resource Consumption, Deserialization of Untrusted Data vulnerability in hexpm hex_core (hex_api modules), hexpm hex (mix_hex_api modules), erlang rebar3 (r3_hex_api modules) allows Object Injection, Excessive Allocation. This vulnerability is as…
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High 7.2
IM-LogicDesigner module of intra-mart Accel Platform contains insecure deserialization issue. This can be exploited onl…
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High 8.4
Deserialization of untrusted data in the LanguageModel class of Flair from versions 0.4.1 to latest are vulnerable to a…
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High 7.2
WordPress uListing plugin <= 2.2.0 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in Stylemix uListing ulisting allows Object Injection.This issue affects uListing: from n/a through <= 2.2.0.
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High 8.9
c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property
c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and `javax.naming.Reference` instances. Several c3p0 `ConnectionPoolDataSource` implementations have a property called `userOverridesAsString` whi…
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Medium 6.6
LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution
LangGraph Checkpoint defines the base interface for LangGraph checkpointers. Prior to version 4.0.0, a Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from `BaseCache` and opt nodes …
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High 8.9
mchange-commons-java: Remote Code Execution via JNDI Reference Resolution
mchange-commons-java, a library that provides Java utilities, includes code that mirrors early implementations of JNDI functionality, including support for remote `factoryClassLocation` values, by which code can be downloaded and invoked within a running appl…
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Critical 10.0
DocLink .NET Remoting Unauthenticated Arbitrary File Read/Write RCE
Altec DocLink (now maintained by Beyond Limits Inc.) version 4.0.336.0 exposes insecure .NET Remoting endpoints over TCP and HTTP/SOAP via Altec.RDCHostService.exe using the ObjectURI "doclinkServer.soap". The service does not require authentication and is vu…
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High 7.7
The Print Service component of Fiserv Originate Loans Peripherals (formerly Velocity Services) in unsupported version 2…
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High 8.8CVE-2026-25747 Public exploit
Apache Camel LevelDB: Deserialization of Untrusted Data in Camel LevelDB
Deserialization of Untrusted Data vulnerability in Apache Camel LevelDB component. The Camel-LevelDB DefaultLevelDBSerializer class deserializes data read from the LevelDB aggregation repository using java.io.ObjectInputStream without applying any ObjectInput…
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Medium 4.6
datapizza-labs datapizza-ai cache.py RedisCache deserialization
A vulnerability has been found in datapizza-labs datapizza-ai 0.0.2. Affected by this vulnerability is the function RedisCache of the file datapizza-ai-cache/redis/datapizza/cache/redis/cache.py. Such manipulation leads to deserialization. The attack requires…
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Medium 5.5CVE-2026-2898 Public exploit
funadmin Backend Endpoint AuthCloudService.php getMember deserialization
A vulnerability was detected in funadmin up to 7.1.0-rc4. This issue affects the function getMember of the file app/common/service/AuthCloudService.php of the component Backend Endpoint. The manipulation of the argument cloud_account results in deserializatio…
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High 8.1
Zumba Json Serializer has a potential PHP Object Injection via Unrestricted @type in unserialize()
Zumba Json Serializer is a library to serialize PHP variables in JSON format. In versions 3.2.2 and below, the library allows deserialization of PHP objects from JSON using a special @type field. The deserializer instantiates any class specified in the @type …
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High 8.8
GFI Archiver MArc.Store Deserialization of Untrusted Data Remote Code Execution Vulnerability
GFI Archiver MArc.Store Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GFI Archiver. Although authentication is required to exploit this …
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High 8.8
GFI Archiver MArc.Core Deserialization of Untrusted Data Remote Code Execution Vulnerability
GFI Archiver MArc.Core Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GFI Archiver. Although authentication is required to exploit this v…
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High 7.5
openITCOCKPIT has Unsafe Deserialization in openITCOCKPIT Changelog Handling
openITCOCKPIT is an open source monitoring tool built for different monitoring engines like Nagios, Naemon and Prometheus. openITCOCKPIT Community Edition 5.3.1 and earlier contains an unsafe PHP deserialization pattern in the processing of changelog entries.…