Weakness (CWE)
CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes
The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.
How to prevent it (4 mitigations)
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Implementation
If available, use features of the language or framework that allow specification of allowlists of attributes or fields that are allowed to be modified. If possible, prefer allowlists over denylists.
For applications written with Ruby on Rails, use the attr_accessible (allowlist) or attr_protected (denylist) macros in each class that may be used in mass assignment.
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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
For any externally-influenced input, check the input against an allowlist of internal object attributes or fields that are allowed to be modified.
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Implementation, Architecture and Design
Refactor the code so that object attributes or fields do not need to be dynamically identified, and only expose getter/setter functionality for the intended attributes.
Source: MITRE CWE-915
278 results · Feed
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Medium 6.5
OpenCTI's GraphQL Mutations Allow Deletion of Unrelated Entities
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.9.1, the GraphQL mutations "IndividualDeletionDeleteMutation" is intended to allow users to delete individual entity objects respectively. …
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High 8.7
(SimpleEval) Objects (including modules) can leak dangerous modules through to direct access inside the sandbox.
SimpleEval is a library for adding evaluatable expressions into python projects. Prior to 1.0.5, objects (including modules) can leak dangerous modules through to direct access inside the sandbox. If the objects you've passed in as names to SimpleEval have mo…
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Critical 10.0
Winter: Privilege escalation by authenticated backend users
Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Prior to 1.0.477, 1.1.12, and 1.2.12, Winter CMS allowed authenticated backend users to escalate their accounts level of access to the system by modifying the ro…
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Medium 5.3
django-unicorn affected by component state manipulation via unvalidated attribute access
Unicorn adds modern reactive component functionality to your Django templates. Prior to 0.67.0, component state manipulation is possible in django-unicorn due to missing access control checks during property updates and method calls. An attacker can bypass th…
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High 7.7CVE-2026-30822 EPSS 15%
Flowise: Mass Assignment in `/api/v1/leads` Endpoint
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, unauthenticated users can inject arbitrary values into internal database fields when creating leads. This issue has been patched in version 3.0.1…
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High 8.7
Immutable.js: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in immutable
Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been pa…
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High 8.8CVE-2025-15602 Public exploit
Snipe-IT < 8.3.7 Mass Assignment Vulnerability Leading to Privilege Escalation
Snipe-IT versions prior to 8.3.7 contain sensitive user attributes related to account privileges that are insufficiently protected against mass assignment. An authenticated, low-privileged user can craft a malicious API request to modify restricted fields of …
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High 7.1
Craft Affected by Entries Authorship Spoofing via Mass Assignment
Craft is a content management system (CMS). Prior to 4.17.0-beta.1 and 5.9.0-beta.1, the entry creation process allows for Mass Assignment of the authorId attribute. A user with "Create Entries" permission can inject the authorIds[] (or authorId) parameter in…
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Low 1.3
Privilege Escalation via Mass Assignment Allows Regular Users to Set Topics as Global Banners
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, an improper authorization check in the topic management logic allows authenticated users to modify privileged attributes of their topics. By manipulating spe…
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Medium 5.3
Svelte SSR attribute spreading includes inherited properties from prototype chain
svelte performance oriented web framework. Prior to 5.51.5, in server-side rendering, attribute spreading on elements (e.g. <div {...attrs}>) enumerates inherited properties from the object's prototype chain rather than only own properties. In environments wh…
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Critical 9.4
Locutus is vulnerable to Prototype Pollution
Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. In versions from 2.0.12 to before 2.0.39, a prototype pollution vulnerability exists in locutus. Despite a previous fix that attempted to mitigate prototype pollutio…
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Medium 6.5CVE-2025-70559 Public exploit
Insecure Deserialization (pickle) in pdfminer.six CMap Loader — Local Privesc
pdfminer.six before 20251230 contains an insecure deserialization vulnerability in the CMap loading mechanism. The library uses Python pickle to deserialize CMap cache files without validation. An attacker with the ability to place a malicious pickle file in …
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Low 2.7
MyTube has Mass Assignment via Settings Management
MyTube is a self-hosted downloader and player for several video websites. Versions 1.7.78 and below have a Mass Assignment vulnerability in the settings management functionality due to insufficient input validation. The application's saveSettings() function a…
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Low 3.7
Lobe Chat has IDOR in Knowledge Base File Removal that Allows Cross User File Deletion
LobeChat is an open source chat application platform. Prior to version 2.0.0-next.193, `knowledgeBase.removeFilesFromKnowledgeBase` tRPC ep allows authenticated users to delete files from any knowledge base without verifying ownership. `userId` filter in the …
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High 7.5
UmbracoForms Vulnerable to Remote Code Execution via Untrusted WSDL Compilation in Dynamic SOAP Client Generation
In Umbraco UmbracoForms through 8.13.16, an authenticated attacker can supply a malicious WSDL (aka Webservice) URL as a data source for remote code execution.
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High 8.2
Mass Assignment in AdonisJS Lucid Allows Overwriting Internal ORM State
@adonisjs/lucid is an SQL ORM for AdonisJS built on top of Knex. Prior to 21.8.2 and 22.0.0-next.6, there is a Mass Assignment vulnerability in AdonisJS Lucid which may allow a remote attacker who can influence data that is passed into Lucid model assignments…
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Critical 9.6
Iris Allows Arbitrary File Deletion via Mass Assignment in Datastore File Management
Iris is a web collaborative platform that helps incident responders share technical details during investigations. Prior to 2.4.24, the DFIR-IRIS datastore file management system has a vulnerability where mass assignment of the file_local_name field combined …
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Medium 4.3
Titra API Contains Mass Assignment Vulnerability
Titra is open source project time tracking software. In versions 0.99.49 and below, an API has a Mass Assignment vulnerability which allows authenticated users to inject arbitrary fields into time entries, bypassing business logic controls via the customfield…
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High 7.1
GraphQL IDOR allows authenticated user to delete workspace content of other users
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.8.1, the GraphQL mutation "WorkspacePopoverDeletionMutation" allows users to delete workspace-related objects such as dashboards and invest…
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Critical 9.1CVE-2025-68109 Public exploit
ChurchCRM vulnerable to RCE with database restore functionality
ChurchCRM is an open-source church management system. In versions prior to 6.5.3, the Database Restore functionality does not validate the content or file extension of uploaded files. As a result, an attacker can upload a web shell file and subsequently uploa…
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Medium 5.3
LibreChat's Improper Input Validation in Prompt Creation API Enables Unauthorized Permission Changes
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when creating prompts, JSON requests are sent to define and modify the prompts via PATCH endpoint for prompt groups (/api/prompts/groups/:groupId). However, the request bodies…
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Medium 6.3
Unauthenticated Device Registration Vulnerability in MXsecurity Series
An unauthenticated device registration vulnerability, caused by Improperly Controlled Modification of Dynamically-Determined Object Attributes, has been identified in the MXsecurity Series. An unauthenticated remote attacker can exploit this vulnerability by …
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Low —
maxminddb's `Reader::open_mmap` unsoundly marks unsafe memmap operation as safe
maxminddb prior to version 0.27 declared `Reader::open_mmap` as safe despite wrapping an inherently unsafe memmap2 operation with no extra step done to guarantee safety. This could have led to undefined behaviour if the file were to be modified on disk while …
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Medium 6.9
mdast-util-to-hast unsanitized class attribute
mdast-util-to-hast is an mdast utility to transform to hast. From 13.0.0 to before 13.2.1, multiple (unprefixed) classnames could be added in markdown source by using character references. This could make rendered user supplied markdown code elements appear l…
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Medium 5.9
Drupal core - Moderately critical - Gadget chain - SA-CORE-2025-006
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection.This issue affects Drupal core: from 8.0.0 before 10.4.9, from 10.5.0 before 10.5.6, from 11.0.0 before 11.1.9, from 11.…
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High 7.6
HCL MyXalytics product is affected by Mass Assignment vulnerability
HCL MyXalytics: 6.6. is affected by Mass Assignment vulnerability. Mass Assignment occurs when user input is automatically bound to application objects without proper validation or access controls, potentially allowing unauthorized modification of sensitive …
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Medium 4.3
Mass Assignment in danny-avila/librechat
A mass assignment vulnerability exists in danny-avila/librechat, affecting all versions. This vulnerability allows attackers to manipulate sensitive fields by automatically binding user-provided data to internal object properties or database fields without pr…
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Critical 10.0
DeepDiff is vulnerable to DoS and Remote Code Execution via Delta class pollution
DeepDiff is a project focused on Deep Difference and search of any Python data. Versions 5.0.0 through 8.6.0 are vulnerable to class pollution via the Delta class constructor, and when combined with a gadget available in DeltaDiff, it can lead to Denial of Se…
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Medium 5.7CVE-2024-57708 Public exploit
An issue in OneTrust SDK v.6.33.0 allows a local attacker to cause a denial of service via the Object.setPrototypeOf, _…
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Low 3.1
comfyanonymous comfyui utils.py set_attr dynamically-determined object attributes
A vulnerability was found in comfyanonymous comfyui 0.3.40. It has been classified as problematic. Affected is the function set_attr of the file /comfy/utils.py. The manipulation leads to dynamically-determined object attributes. It is possible to launch the …
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Low 3.9
handcraftedinthealps goodby-csv Potential Gadget Chain allowing Remote Code Execution
handcraftedinthealps goodby-csv is a highly memory efficient, flexible and extendable open-source CSV import/export library. Prior to 1.4.3, goodby-csv could be used as part of a chain of methods that is exploitable when an insecure deserialization vulnerabil…
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High 7.5
Drupal core - Moderately critical - Gadget Chain - SA-CORE-2025-003
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection.This issue affects Drupal core: from 8.0.0 before 10.3.13, from 10.4.0 before 10.4.3, from 11.0.0 before 11.0.12, from 1…
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High 8.1
Mesop Class Pollution vulnerability leads to DoS and Jailbreak attacks
Mesop is a Python-based UI framework that allows users to build web applications. A class pollution vulnerability in Mesop prior to version 0.14.1 allows attackers to overwrite global variables and class attributes in certain Mesop modules during runtime. Thi…
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Medium 4.6
Mass Assignment in Preset Creation Allows User ID Manipulation in danny-avila/librechat
In danny-avila/librechat version v0.7.5-rc2, a vulnerability exists in the preset creation functionality where a user can manipulate the user ID field through mass assignment. This allows an attacker to inject a different user ID into the preset object, causi…
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Critical 9.4CVE-2025-2304 Public exploit
Camaleon CMS Privilege Escalation
A Privilege Escalation through a Mass Assignment exists in Camaleon CMS When a user wishes to change his password, the 'updated_ajax' method of the UsersController is called. The vulnerability stems from the use of the dangerous permit! method, which allows a…
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Critical 9.3
Django-Unicorn Class Pollution Vulnerability, Leading to XSS, DoS and Authentication Bypass
Django-Unicorn adds modern reactive component functionality to Django templates. Affected versions of Django-Unicorn are vulnerable to python class pollution vulnerability. The vulnerability arises from the core functionality `set_property_value`, which can b…
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Critical 9.5
Apache Struts: Mixing setters for uploaded files and normal fields can allow bypass file upload checks
File upload logic in Apache Struts is flawed. An attacker can manipulate file upload params to enable paths traversal and under some circumstances this can lead to uploading a malicious file which can be used to perform Remote Code Execution. This issue affec…
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Critical 9.8
Drupal core - Moderately critical - Gadget chain - SA-CORE-2024-008
Deserialization of Untrusted Data vulnerability in Drupal Core allows Object Injection.This issue affects Drupal Core: from 7.0 before 7.102, from 8.0.0 before 10.2.11, from 10.3.0 before 10.3.9. Drupal core contains a chain of methods that is exploitable whe…
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Critical 9.8
Drupal core - Moderately critical - Gadget chain - SA-CORE-2024-007
Deserialization of Untrusted Data vulnerability in Drupal Core allows Object Injection.This issue affects Drupal Core: from 8.0.0 before 10.2.11, from 10.3.0 before 10.3.9, from 11.0.0 before 11.0.8. Drupal core contains a chain of methods that is exploitable…
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Critical 9.8
Drupal core - Less critical - Gadget chain - SA-CORE-2024-006
Deserialization of Untrusted Data vulnerability in Drupal Core allows Object Injection.This issue affects Drupal Core: from 8.0.0 before 10.2.11, from 10.3.0 before 10.3.9, from 11.0.0 before 11.0.8. Drupal core contains a chain of methods that is exploitable…