Weakness (CWE)
CWE-1321: Improperly Controlled Modification of Object Prototype Attributes
The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
How to prevent it (5 mitigations)
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Implementation
By freezing the object prototype first (for example, Object.freeze(Object.prototype)), modification of the prototype becomes impossible.
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Architecture and Design
By blocking modifications of attributes that resolve to object prototype, such as proto or prototype, this weakness can be mitigated.
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Implementation
When handling untrusted objects, validating using a schema can be used.
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Implementation
By using an object without prototypes (via Object.create(null) ), adding object prototype attributes by accessing the prototype via the special attributes becomes impossible, mitigating this weakness.
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Implementation
Map can be used instead of objects in most cases. If Map methods are used instead of object attributes, it is not possible to access the object prototype or modify it.
Source: MITRE CWE-1321
212 results · Clear filters · Feed
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Medium 4.1
Prototype Pollution in Progress® Telerik® KendoReact
In Progress® Telerik® KendoReact versions v3.5.0 through v9.4.0, an attacker can introduce or modify properties within the global prototype chain which can result in denial of service or command injection.
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Medium 6.5
@rpldy/uploader prototype pollution
A prototype pollution in the lib.createUploader function of @rpldy/uploader v1.8.1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.
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Medium 4.2
In JetBrains YouTrack before 2024.3.52635 multiple merge functions were vulnerable to prototype pollution attack
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Medium 6.9
Prototype Pollution in @intlify/shared >=9.7.0 <= 10.0.4
@intlify/shared is a shared library for the intlify project. The latest version of @intlify/shared (10.0.4) is vulnerable to Prototype Pollution through the entry function(s) lib.deepCopy. An attacker can supply a payload with Object.prototype setter to intro…
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Medium 4.3
Prototype Pollution vulnerability in SAP HANA Client
The SAP HANA Node.js client package versions from 2.0.0 before 2.21.31 is impacted by Prototype Pollution vulnerability allowing an attacker to add arbitrary properties to global object prototypes. This is due to improper user input sanitation when using the …
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Medium 6.5
Prototype pollution in @backstage/plugin-catalog-backend
Backstage is an open framework for building developer portals. A malicious actor with authenticated access to a Backstage instance with the catalog backend plugin installed is able to interrupt the service using a specially crafted query to the catalog API. T…
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Medium 5.9
node-gettext vulnerable to Prototype Pollution
All versions of the package node-gettext are vulnerable to Prototype Pollution via the addTranslations() function in gettext.js due to improper user input sanitization.
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Medium 6.3
@cat5th/key-serializer Prototype Pollution vulnerability
harvey-woo cat5th/key-serializer v0.2.5 was discovered to contain a prototype pollution via the function "query". This vulnerability allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via injecting arbitrary properties.
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Medium 6.5
adolph_dudu ratio-swiper v0.0.2 was discovered to contain a prototype pollution via the function parse. This vulnerabil…
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Medium 6.3
ag-grid packages vulnerable to Prototype Pollution
ag-grid-enterprise v31.3.2 was discovered to contain a prototype pollution via the component _ModuleSupport.jsonApply. This vulnerability allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via injecting arbitrary properties.
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Medium 6.5
adolph_dudu ratio-swiper 0.0.2 was discovered to contain a prototype pollution via the function parse. This vulnerabili…
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Medium 6.3
@aofl/cli-lib Prototype Pollution vulnerability
aofl cli-lib v3.14.0 was discovered to contain a prototype pollution via the component defaultsDeep. This vulnerability allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via injecting arbitrary properties.
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Medium 6.5
adolph_dudu ratio-swiper was discovered to contain a prototype pollution via the function extendDefaults
adolph_dudu ratio-swiper v0.0.2 was discovered to contain a prototype pollution via the function extendDefaults. This vulnerability allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via injecting arbitrary properties.
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Medium 6.3
flatten-json Prototype Pollution
A Prototype Pollution issue in flatten-json 1.0.1 allows an attacker to execute arbitrary code via module.exports.unflattenJSON (flatten-json/index.js:42)
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Medium 5.9
@akbr/update Prototype Pollution
akbr update 1.0.0 is vulnerable to Prototype Pollution via update/index.js.
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Medium 5.9
njwt Prototype Pollution vulnerability
njwt up to v0.4.0 was discovered to contain a prototype pollution in the Parser.prototype.parse method.
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Medium 4.6
Prototype Pollution in getQueryParam Function (URL Query Parser)
FreeScout is a free, self-hosted help desk and shared mailbox. Versions of FreeScout prior to 1.8.139 contain a Prototype Pollution vulnerability in the `/public/js/main.js` source file. The Prototype Pollution arises because the `getQueryParam` Function recu…
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Medium 6.8
Jenkins Subversion Partial Release Manager Plugin programmatically disables the fix for CVE-2016-3721
Jenkins Subversion Partial Release Manager Plugin 1.0.1 and earlier programmatically disables the fix for CVE-2016-3721 whenever a build is triggered from a release tag, by setting the Java system property 'hudson.model.ParametersAction.keepUndefinedParameter…
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Medium 4.0CVE-2024-33883 Public exploit
ejs lacks certain pollution protection
The ejs (aka Embedded JavaScript templates) package before 3.1.10 for Node.js lacks certain pollution protection.
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Medium 6.5
mysql2 vulnerable to Prototype Poisoning
Versions of the package mysql2 before 3.9.4 are vulnerable to Prototype Poisoning due to insecure results object creation and improper user input sanitization passed through parserFn in text_parser.js and binary_parser.js.
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Medium 5.2
Cryptographic key in plain text vulnerability in FriendlyElec's FriendlyWrt
Cryptographic key vulnerability encoded in the FriendlyWrt firmware affecting version 2022-11-16.51b3d35. This vulnerability could allow an attacker to compromise the confidentiality and integrity of encrypted data.
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Medium 6.3CVE-2024-23339 Public exploit
hoolock does not block Prototype pollution with object-path related utilities
hoolock is a suite of lightweight utilities designed to maintain a small footprint when bundled. Starting in version 2.0.0 and prior to version 2.2.1, utility functions related to object paths (`get`, `set`, and `update`) did not block attempts to access or a…
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Medium 6.5CVE-2023-26136 Public exploit
tough-cookie Prototype Pollution vulnerability
Versions of the package tough-cookie before 4.1.3 are vulnerable to Prototype Pollution due to improper handling of Cookies when using CookieJar in rejectPublicSuffixes=false mode. This issue arises from the manner in which the objects are initialized.
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Medium 5.4
Prototype Pollution in antfu/utils
Prototype Pollution in GitHub repository antfu/utils prior to 0.7.3.
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Medium 6.1
A prototype pollution vulnerability exists in Strikingly CMS which can result in reflected cross-site scripting (XSS) i…
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Medium 5.3
xml2js 0.4.23 - Prototype Pollution
xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited.
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Medium 6.3
Yomguithereal Baobab prototype pollution
A vulnerability was found in Yomguithereal Baobab up to 2.6.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes ('prototyp…
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Medium 6.3
json-pointer index.js set prototype pollution
A vulnerability, which was classified as critical, has been found in json-pointer up to 0.6.1. Affected by this issue is the function set of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('proto…
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Medium 6.3
Starcounter-Jack JSON-Patch prototype pollution
A vulnerability has been found in Starcounter-Jack JSON-Patch up to 3.1.0 and classified as problematic. This vulnerability affects unknown code. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution…
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Medium 6.3
hughsk flat index.js unflatten prototype pollution
A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollutio…
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Medium 5.5
cronvel tree-kit prototype pollution
A vulnerability classified as problematic has been found in cronvel tree-kit up to 0.6.x. This affects an unknown part. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). Upgrading to version 0…
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Medium 6.3
LinkedIn dustjs prototype pollution
A vulnerability was found in LinkedIn dustjs up to 2.x and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). Th…
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Medium 6.3
Furqan node-whois index.coffee prototype pollution
A vulnerability classified as critical has been found in Furqan node-whois. Affected is an unknown function of the file index.coffee. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). It is po…
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Medium 5.5
chbrown rfc6902 pointer.ts prototype pollution
A vulnerability classified as problematic has been found in chbrown rfc6902. This affects an unknown part of the file pointer.ts. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The exploit …
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Medium 5.3
deep-object-diff 1.1.0 - Prototype Pollution
deep-object-diff version 1.1.0 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the '__proto__' property to be edited.
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Medium 5.3
fastest-json-copy 1.0.1 - Prototype Pollution
fastest-json-copy version 1.0.1 allows an external attacker to edit or add new properties to an object. This is possible because the application does not correctly validate the incoming JSON keys, thus allowing the '__proto__' property to be edited.
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Medium 5.3
deep-parse-json 1.0.2 - Prototype Pollution
deep-parse-json version 1.0.2 allows an external attacker to edit or add new properties to an object. This is possible because the application does not correctly validate the incoming JSON keys, thus allowing the '__proto__' property to be edited.
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Medium 5.6
Prototype Pollution
All versions of package @ianwalter/merge are vulnerable to Prototype Pollution via the main (merge) function. Maintainer suggests using @generates/merger instead.
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Medium 4.0
Prototype Pollution
This affects all versions of package grunt-util-property. The function call could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.
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Medium 5.9
Prototype Pollution
All versions of package querymen are vulnerable to Prototype Pollution if the parameters of exported function handler(type, name, fn) can be controlled by users without any sanitization. Note: This vulnerability derives from an incomplete fix of [CVE-2020-760…