WS-2020-0443
Published:May 14, 2026
Updated:May 14, 2026
In socket.io in versions 1.0.0 to 2.3.0 is vulnerable to Cross-Site Websocket Hijacking, it allows an attacker to bypass origin protection using special symbols include "`" and "$".
Affected Packages
socket.io (CDN_JS):
Affected version(s) >=1.0.0-pre <2.4.0Fix Suggestion:
Update to version 2.4.0dgenies (CONDA):
Affected version(s) >=1.2.0.1 <=1.5.0Fix Suggestion:
Update to version no_fixjsdom (CONDA):
Affected version(s) =11.0.0 <11.11.0Fix Suggestion:
Update to version 11.11.0quarto (CONDA):
Affected version(s) =1.1.145 <1.2.335Fix Suggestion:
Update to version 1.2.335socket.io (NPM):
Affected version(s) >=1.0.0-pre <2.4.0Fix Suggestion:
Update to version 2.4.0pwptemplatepusintek (NUGET):
Affected version(s) =0.0.1Fix Suggestion:
Update to version no_fixnordron.angulartemplate (NUGET):
Affected version(s) =0.1.5 <0.1.6Fix Suggestion:
Update to version 0.1.6sheelersoft.angulartemplate (NUGET):
Affected version(s) >=0.0.1 <=0.0.2Fix Suggestion:
Update to version no_fixsimplefile123 (NUGET):
Affected version(s) =1.0.0Fix Suggestion:
Update to version no_fixautodomain.modules.core (NUGET):
Affected version(s) >=4.1.0 <=4.1.1Fix Suggestion:
Update to version no_fixautodomain.modules.core.blazor (NUGET):
Affected version(s) >=4.1.202 <4.1.205Fix Suggestion:
Update to version 4.1.205newplatform.flexberry.designer.embercache (NUGET):
Affected version(s) =3.7.0-beta09Fix Suggestion:
Update to version no_fixsheeler.angulartemplate (NUGET):
Affected version(s) =0.0.1Fix Suggestion:
Update to version no_fixapace (NUGET):
Affected version(s) >=1.0.4 <=6.1.0.4Fix Suggestion:
Update to version no_fixkarmanodemodules (NUGET):
Affected version(s) >=1.0.0 <=1.0.1Fix Suggestion:
Update to version no_fixpwptemplatecms (NUGET):
Affected version(s) >=0.0.1 <=0.0.2Fix Suggestion:
Update to version no_fixdotnetng.template (NUGET):
Affected version(s) >=1.0.0.1 <1.0.0.4Fix Suggestion:
Update to version 1.0.0.4midiator.webclient (NUGET):
Affected version(s) >=1.0.98 <1.0.105Fix Suggestion:
Update to version 1.0.105ristorantino/aditions (PHP):
Affected version(s) =dev-master <dev-master-ko-js-updateFix Suggestion:
Update to version dev-master-ko-js-updatenovosga/novosga (PHP):
Affected version(s) =v3.0.x-dev <dev-dependabot/composer/twig/twig-3.14.0Fix Suggestion:
Update to version dev-dependabot/composer/twig/twig-3.14.0kriss/yii2-web-msg-sender (PHP):
Affected version(s) =v1.0 <v1.1Fix Suggestion:
Update to version v1.1blenderdeluxe/chat (PHP):
Affected version(s) >=dev-master <=1.0.0Fix Suggestion:
Update to version no_fixpterodactyl/panel (PHP):
Affected version(s) >=v0.6.4 <dev-actions/tests-patch-1Fix Suggestion:
Update to version dev-actions/tests-patch-1oceancodex/wpsp (PHP):
Affected version(s) >=8.1.0 <8.1.1Fix Suggestion:
Update to version 8.1.1mpcmf/mpcmf-web-app (PHP):
Affected version(s) =dev-php7Fix Suggestion:
Update to version no_fixefecanaltay/hello-world (PHP):
Affected version(s) =dev-masterFix Suggestion:
Update to version no_fixmriso_dev/nodejschat (PHP):
Affected version(s) =dev-masterFix Suggestion:
Update to version no_fixchrisbraybrooke/laravel-ecommerce (PHP):
Affected version(s) >=0.0.4 <0.0.17Fix Suggestion:
Update to version 0.0.17flexxia/flexprimeng (PHP):
Affected version(s) =dev-anguarJs-v7 <dev-dependabot/npm_and_yarn/css/postcss/y18n-3.2.2Fix Suggestion:
Update to version dev-dependabot/npm_and_yarn/css/postcss/y18n-3.2.2yewei-cao/noodle (PHP):
Affected version(s) >=dev-master <v0.0.31Fix Suggestion:
Update to version v0.0.31pterodactyl/panel (PHP):
Affected version(s) >=dev-feature/root-admin-suspended <dev-fix/forgeFix Suggestion:
Update to version dev-fix/forgesombrerodepaja/franky-skeleton-application (PHP):
Affected version(s) >=dev-dependabot/npm_and_yarn/engine.io-and-browser-sync-6.2.1 <dev-devFix Suggestion:
Update to version dev-devmpcmf/mpcmf-web-app (PHP):
Affected version(s) =dev-master <1.0.0.x-devFix Suggestion:
Update to version 1.0.0.x-devyewei-cao/noodle (PHP):
Affected version(s) =dev-dependabot/npm_and_yarn/decode-uri-component-0.2.2 <v0.03Fix Suggestion:
Update to version v0.03oceancodex/wpsp (PHP):
Affected version(s) >=8.0.0 <8.0.1Fix Suggestion:
Update to version 8.0.1novosga/novosga (PHP):
Affected version(s) =v2.1.x-dev <v2.1.1Fix Suggestion:
Update to version v2.1.1zhangjf108/php-framework-application (PHP):
Affected version(s) =dev-masterFix Suggestion:
Update to version no_fixflexxia/flexprimeng (PHP):
Affected version(s) =dev-dependabot/npm_and_yarn/css/postcss/minimist-1.2.8 <dev-dependabot/npm_and_yarn/css/postcss/ini-1.3.8Fix Suggestion:
Update to version dev-dependabot/npm_and_yarn/css/postcss/ini-1.3.8dwij/laraadmin (PHP):
Affected version(s) =dev-Unit-Testing-1 <1.0.1Fix Suggestion:
Update to version 1.0.1wangliang/laravel-admin (PHP):
Affected version(s) >=dev-master <=v1.4Fix Suggestion:
Update to version no_fixyanev/laraadmin (PHP):
Affected version(s) >=dev-master <=2.0.2Fix Suggestion:
Update to version no_fixscancode/portal-module (PHP):
Affected version(s) >=v1.0.0 <dev-dependabot/npm_and_yarn/Resources/assets/coreui/path-parse-1.0.7Fix Suggestion:
Update to version dev-dependabot/npm_and_yarn/Resources/assets/coreui/path-parse-1.0.7pterodactyl/panel (PHP):
Affected version(s) >=dev-replace-allocation-repository <dev-softwarenoob/remove-gaFix Suggestion:
Update to version dev-softwarenoob/remove-gatianfuunion/mark-resources (PHP):
Affected version(s) >=dev-master <=0.1Fix Suggestion:
Update to version no_fixbobzhai/apps (PHP):
Affected version(s) >=dev-master <=1.0.0Fix Suggestion:
Update to version no_fixfrankyframework/franky2 (PHP):
Affected version(s) =dev-mainFix Suggestion:
Update to version no_fixchrisbraybrooke/laravel-ecommerce (PHP):
Affected version(s) =dev-dev <dev-form-field-keyFix Suggestion:
Update to version dev-form-field-keyoceancodex/wpsp (PHP):
Affected version(s) >=dev-main <7.4.0Fix Suggestion:
Update to version 7.4.0oceancodex/wpsp (PHP):
Affected version(s) >=8.2.0 <8.2.1Fix Suggestion:
Update to version 8.2.1bobzhai/cbsms (PHP):
Affected version(s) >=dev-main <=1.0Fix Suggestion:
Update to version no_fixsroehrl/neoan-php (PHP):
Affected version(s) =2.0.11Fix Suggestion:
Update to version no_fixbobzhai/fourbrother (PHP):
Affected version(s) >=dev-main <=v1.0.1Fix Suggestion:
Update to version no_fixflexxia/flexprimeng (PHP):
Affected version(s) =dev-dependabot/npm_and_yarn/css/postcss/minimatch-3.1.2 <dev-dependabot/npm_and_yarn/css/postcss/browserslist-4.17.0Fix Suggestion:
Update to version dev-dependabot/npm_and_yarn/css/postcss/browserslist-4.17.0yewei-cao/noodle (PHP):
Affected version(s) >=dev-dependabot/npm_and_yarn/engine.io-and-browser-sync-and-socket.io-6.2.1 <dev-feature/adminFix Suggestion:
Update to version dev-feature/admingrandchef/php-socket-io-event-emitter (PHP):
Affected version(s) >=dev-master <=1.0.2Fix Suggestion:
Update to version no_fixmahendraempyreal/emp-chat (PHP):
Affected version(s) >=dev-main <1.0.0Fix Suggestion:
Update to version 1.0.0chrisbraybrooke/laravel-ecommerce (PHP):
Affected version(s) >=v0.0.17 <0.0.56Fix Suggestion:
Update to version 0.0.56pterodactyl/panel (PHP):
Affected version(s) >=dev-matthewpi/composer-upgrade-1 <dev-fix/forgev2Fix Suggestion:
Update to version dev-fix/forgev2pterodactyl/panel (PHP):
Affected version(s) =dev-dane/restore-backups <dev-dane/sanctumFix Suggestion:
Update to version dev-dane/sanctumscancode/portal-module (PHP):
Affected version(s) >=v1.0.7 <v1.0.12Fix Suggestion:
Update to version v1.0.12pterodactyl/panel (PHP):
Affected version(s) >=dev-feature/console-scrolldown <dev-feature/react-adminFix Suggestion:
Update to version dev-feature/react-adminxlabs/notifybundle (PHP):
Affected version(s) >=dev-master <=1.0.14Fix Suggestion:
Update to version no_fixksaitechnologies/yii2-app-kernel (PHP):
Affected version(s) >=v0.2.7 <v1.0.2Fix Suggestion:
Update to version v1.0.2pterodactyl/panel (PHP):
Affected version(s) >=dev-Softwarenoob/docker-readme <dev-dane/fiddle-with-new-tablesFix Suggestion:
Update to version dev-dane/fiddle-with-new-tablesnovosga/novosga (PHP):
Affected version(s) =2.0.0-RC1 <v2.0.0-RC1Fix Suggestion:
Update to version v2.0.0-RC1basic-builder/easybuilder-bundle (PHP):
Affected version(s) >=dev-master <v0.0.3Fix Suggestion:
Update to version v0.0.3novosga/novosga (PHP):
Affected version(s) =dev-v2.0.7-fix-reset <v2.0.7Fix Suggestion:
Update to version v2.0.7novosga/novosga (PHP):
Affected version(s) =v2.0.x-dev <v2.0.1Fix Suggestion:
Update to version v2.0.1originalsystems/yii2-app-kernel (PHP):
Affected version(s) >=v0.2.7 <v1.0.2Fix Suggestion:
Update to version v1.0.2ksaitechnologies/yii2-app-kernel (PHP):
Affected version(s) =dev-dich <dev-masterFix Suggestion:
Update to version dev-masteroriginalsystems/yii2-app-template (PHP):
Affected version(s) =v0.1.1 <v0.2.4Fix Suggestion:
Update to version v0.2.4scancode/portal-module (PHP):
Affected version(s) >=v0.0.1 <dev-dependabot/npm_and_yarn/Resources/assets/coreui/decode-uri-component-0.2.2Fix Suggestion:
Update to version dev-dependabot/npm_and_yarn/Resources/assets/coreui/decode-uri-component-0.2.2anupsathya/umd_bootstrap_sass (PHP):
Affected version(s) >=v0.2.7 <=v0.2.14Fix Suggestion:
Update to version no_fixtouskar/php-socket-io-event-emitter (PHP):
Affected version(s) =dev-masterFix Suggestion:
Update to version no_fixsroehrl/neoan-php (PHP):
Affected version(s) =dev-master <v2.0.1-betaFix Suggestion:
Update to version v2.0.1-betajagermesh/bright (PHP):
Affected version(s) >=v2.0.10 <v2.0.12Fix Suggestion:
Update to version v2.0.12novosga/novosga (PHP):
Affected version(s) =v2.2.x-dev <dev-dependabot/composer/twig/twig-2.14.11Fix Suggestion:
Update to version dev-dependabot/composer/twig/twig-2.14.11narirock/marrs-catalog (PHP):
Affected version(s) >=dev-dev <=1Fix Suggestion:
Update to version no_fixoriginalsystems/yii2-app-kernel (PHP):
Affected version(s) =dev-dich <dev-masterFix Suggestion:
Update to version dev-masterpanda-coder/phpanda (PHP):
Affected version(s) =dev-master <dev-oldMasterFix Suggestion:
Update to version dev-oldMastermmi/mmi-cms (PHP):
Affected version(s) >=2.2.9.1 <2.3.1Fix Suggestion:
Update to version 2.3.1s00d/redis-web (PHP):
Affected version(s) =0.1.0 <0.1.1Fix Suggestion:
Update to version 0.1.1foodsharing/foodsharing (PHP):
Affected version(s) =dev-masterFix Suggestion:
Update to version no_fixpterodactyl/panel (PHP):
Affected version(s) >=dev-develop <dev-eggs/rustFix Suggestion:
Update to version dev-eggs/rustchrisbraybrooke/laravel-ecommerce (PHP):
Affected version(s) =0.0.1 <0.0.2Fix Suggestion:
Update to version 0.0.2pusaka3/framework (PHP):
Affected version(s) >=dev-develop <=v3.0.1Fix Suggestion:
Update to version no_fixmahendraempyreal/emp-chat (PHP):
Affected version(s) >=1.0.1 <=1.0.9Fix Suggestion:
Update to version no_fixdickyermawan/yii2-socketio (PHP):
Affected version(s) >=dev-master <=v1.0Fix Suggestion:
Update to version no_fixpterodactyl/panel (PHP):
Affected version(s) =dev-feature/issue-18 <dev-softwarenoob/docker-arm64Fix Suggestion:
Update to version dev-softwarenoob/docker-arm64yewei-cao/noodle (PHP):
Affected version(s) >=dev-dependabot/npm_and_yarn/path-parse-1.0.7 <dev-dependabot/npm_and_yarn/y18n-3.2.2Fix Suggestion:
Update to version dev-dependabot/npm_and_yarn/y18n-3.2.2johnrazeur/php-socket-io-event-emitter (PHP):
Affected version(s) >=dev-master <v1.0.0Fix Suggestion:
Update to version v1.0.0pterodactyl/panel (PHP):
Affected version(s) >=dev-dane/laravel-8 <dev-dane/laravel-9Fix Suggestion:
Update to version dev-dane/laravel-9pterodactyl/panel (PHP):
Affected version(s) =dev-fix-2094 <dev-issue/3535Fix Suggestion:
Update to version dev-issue/3535novosga/novosga (PHP):
Affected version(s) =dev-master <v0.5.1Fix Suggestion:
Update to version v0.5.1socieboy/chat (PHP):
Affected version(s) =dev-masterFix Suggestion:
Update to version no_fixpterodactyl/panel (PHP):
Affected version(s) =dev-master <dev-matthewpi/database-tlsFix Suggestion:
Update to version dev-matthewpi/database-tlsnovosga/novosga (PHP):
Affected version(s) =dev-dependabot/composer/symfony/cache-4.3.11 <dev-dependabot/composer/symfony/serializer-4.4.35Fix Suggestion:
Update to version dev-dependabot/composer/symfony/serializer-4.4.35dgenies (PYTHON):
Affected version(s) >=1.2.0.1 <=1.5.0Fix Suggestion:
Update to version no_fixelectrscash (RUST):
Affected version(s) =1.0.0 <1.1.1Fix Suggestion:
Update to version 1.1.1Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE