WS-2020-0443 | Mend Vulnerability Database

Vulnerability DatabaseWS-2020-0443

WS-2020-0443

Published:May 20, 2026

Updated:May 20, 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 <2.4.0

Fix Suggestion:

Update to version 2.4.0

quarto (CONDA):

Affected version(s) =1.1.145 <1.2.335

Fix Suggestion:

Update to version 1.2.335

jsdom (CONDA):

Affected version(s) =11.0.0 <11.11.0

Fix Suggestion:

Update to version 11.11.0

dgenies (CONDA):

Affected version(s) >=1.2.0.1 <=1.5.0

Fix Suggestion:

Update to version no_fix

socket.io (NPM):

Affected version(s) >=1.0.0-pre <2.4.0

Fix Suggestion:

Update to version 2.4.0

sheeler.angulartemplate (NUGET):

Affected version(s) =0.0.1

Fix Suggestion:

Update to version no_fix

pwptemplatecms (NUGET):

Affected version(s) >=0.0.1 <=0.0.2

Fix Suggestion:

Update to version no_fix

apace (NUGET):

Affected version(s) >=1.0.4 <=6.1.0.4

Fix Suggestion:

Update to version no_fix

autodomain.modules.core (NUGET):

Affected version(s) >=4.1.0 <=4.1.1

Fix Suggestion:

Update to version no_fix

midiator.webclient (NUGET):

Affected version(s) >=1.0.98 <1.0.105

Fix Suggestion:

Update to version 1.0.105

autodomain.modules.core.blazor (NUGET):

Affected version(s) >=4.1.202 <4.1.205

Fix Suggestion:

Update to version 4.1.205

sheelersoft.angulartemplate (NUGET):

Affected version(s) >=0.0.1 <=0.0.2

Fix Suggestion:

Update to version no_fix

pwptemplatepusintek (NUGET):

Affected version(s) =0.0.1

Fix Suggestion:

Update to version no_fix

simplefile123 (NUGET):

Affected version(s) =1.0.0

Fix Suggestion:

Update to version no_fix

nordron.angulartemplate (NUGET):

Affected version(s) =0.1.5 <0.1.6

Fix Suggestion:

Update to version 0.1.6

karmanodemodules (NUGET):

Affected version(s) >=1.0.0 <=1.0.1

Fix Suggestion:

Update to version no_fix

newplatform.flexberry.designer.embercache (NUGET):

Affected version(s) =3.7.0-beta09

Fix Suggestion:

Update to version no_fix

dotnetng.template (NUGET):

Affected version(s) >=1.0.0.1 <1.0.0.4

Fix Suggestion:

Update to version 1.0.0.4

socieboy/chat (PHP):

Affected version(s) =dev-master

Fix Suggestion:

Update to version no_fix

pterodactyl/panel (PHP):

Affected version(s) >=dev-matthewpi/composer-upgrade-1 <dev-fix/forgev2

Fix Suggestion:

Update to version dev-fix/forgev2

pterodactyl/panel (PHP):

Affected version(s) =dev-master <dev-matthewpi/database-tls

Fix Suggestion:

Update to version dev-matthewpi/database-tls

s00d/redis-web (PHP):

Affected version(s) =0.1.0 <0.1.1

Fix Suggestion:

Update to version 0.1.1

originalsystems/yii2-app-template (PHP):

Affected version(s) =v0.1.1 <v0.2.4

Fix Suggestion:

Update to version v0.2.4

yewei-cao/noodle (PHP):

Affected version(s) >=dev-master <v0.0.31

Fix Suggestion:

Update to version v0.0.31

yewei-cao/noodle (PHP):

Affected version(s) >=dev-dependabot/npm_and_yarn/engine.io-and-browser-sync-and-socket.io-6.2.1 <dev-feature/admin

Fix Suggestion:

Update to version dev-feature/admin

originalsystems/yii2-app-kernel (PHP):

Affected version(s) =dev-dich <dev-master

Fix Suggestion:

Update to version dev-master

ristorantino/aditions (PHP):

Affected version(s) =dev-master <dev-master-ko-js-update

Fix Suggestion:

Update to version dev-master-ko-js-update

oceancodex/wpsp (PHP):

Affected version(s) >=dev-main <7.4.0

Fix Suggestion:

Update to version 7.4.0

sroehrl/neoan-php (PHP):

Affected version(s) =dev-master <v2.0.1-beta

Fix Suggestion:

Update to version v2.0.1-beta

chrisbraybrooke/laravel-ecommerce (PHP):

Affected version(s) =0.0.1 <0.0.2

Fix Suggestion:

Update to version 0.0.2

bobzhai/fourbrother (PHP):

Affected version(s) >=dev-main <=v1.0.1

Fix Suggestion:

Update to version no_fix

mpcmf/mpcmf-web-app (PHP):

Affected version(s) =dev-master <1.0.0.x-dev

Fix Suggestion:

Update to version 1.0.0.x-dev

grandchef/php-socket-io-event-emitter (PHP):

Affected version(s) >=dev-master <=1.0.2

Fix Suggestion:

Update to version no_fix

pterodactyl/panel (PHP):

Affected version(s) >=dev-feature/console-scrolldown <dev-feature/react-admin

Fix Suggestion:

Update to version dev-feature/react-admin

scancode/portal-module (PHP):

Affected version(s) >=v1.0.7 <v1.0.12

Fix Suggestion:

Update to version v1.0.12

pterodactyl/panel (PHP):

Affected version(s) =dev-feature/issue-18 <dev-softwarenoob/docker-arm64

Fix Suggestion:

Update to version dev-softwarenoob/docker-arm64

blenderdeluxe/chat (PHP):

Affected version(s) >=dev-master <=1.0.0

Fix Suggestion:

Update to version no_fix

novosga/novosga (PHP):

Affected version(s) =dev-master <v0.5.1

Fix Suggestion:

Update to version v0.5.1

tianfuunion/mark-resources (PHP):

Affected version(s) >=dev-master <=0.1

Fix Suggestion:

Update to version no_fix

wangliang/laravel-admin (PHP):

Affected version(s) >=dev-master <=v1.4

Fix Suggestion:

Update to version no_fix

mahendraempyreal/emp-chat (PHP):

Affected version(s) >=1.0.1 <=1.0.9

Fix Suggestion:

Update to version no_fix

novosga/novosga (PHP):

Affected version(s) =dev-v2.0.7-fix-reset <v2.0.7

Fix Suggestion:

Update to version v2.0.7

pterodactyl/panel (PHP):

Affected version(s) >=dev-feature/root-admin-suspended <dev-fix/forge

Fix Suggestion:

Update to version dev-fix/forge

novosga/novosga (PHP):

Affected version(s) =v2.0.x-dev <v2.0.1

Fix Suggestion:

Update to version v2.0.1

kriss/yii2-web-msg-sender (PHP):

Affected version(s) =v1.0 <v1.1

Fix Suggestion:

Update to version v1.1

sroehrl/neoan-php (PHP):

Affected version(s) =2.0.11

Fix Suggestion:

Update to version no_fix

pterodactyl/panel (PHP):

Affected version(s) >=dev-dane/laravel-8 <dev-dane/laravel-9

Fix Suggestion:

Update to version dev-dane/laravel-9

flexxia/flexprimeng (PHP):

Affected version(s) =dev-dependabot/npm_and_yarn/css/postcss/minimatch-3.1.2 <dev-dependabot/npm_and_yarn/css/postcss/browserslist-4.17.0

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/css/postcss/browserslist-4.17.0

pterodactyl/panel (PHP):

Affected version(s) >=dev-replace-allocation-repository <dev-softwarenoob/remove-ga

Fix Suggestion:

Update to version dev-softwarenoob/remove-ga

oceancodex/wpsp (PHP):

Affected version(s) >=8.0.0 <8.0.1

Fix Suggestion:

Update to version 8.0.1

mpcmf/mpcmf-web-app (PHP):

Affected version(s) =dev-php7

Fix Suggestion:

Update to version no_fix

narirock/marrs-catalog (PHP):

Affected version(s) >=dev-dev <=1

Fix Suggestion:

Update to version no_fix

pterodactyl/panel (PHP):

Affected version(s) >=v0.6.4 <dev-actions/tests-patch-1

Fix Suggestion:

Update to version dev-actions/tests-patch-1

scancode/portal-module (PHP):

Affected version(s) >=v1.0.0 <dev-dependabot/npm_and_yarn/Resources/assets/coreui/path-parse-1.0.7

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/Resources/assets/coreui/path-parse-1.0.7

chrisbraybrooke/laravel-ecommerce (PHP):

Affected version(s) =dev-dev <dev-form-field-key

Fix Suggestion:

Update to version dev-form-field-key

dwij/laraadmin (PHP):

Affected version(s) =dev-Unit-Testing-1 <1.0.1

Fix Suggestion:

Update to version 1.0.1

yewei-cao/noodle (PHP):

Affected version(s) =dev-dependabot/npm_and_yarn/decode-uri-component-0.2.2 <v0.03

Fix Suggestion:

Update to version v0.03

bobzhai/cbsms (PHP):

Affected version(s) >=dev-main <=1.0

Fix Suggestion:

Update to version no_fix

basic-builder/easybuilder-bundle (PHP):

Affected version(s) >=dev-master <v0.0.3

Fix Suggestion:

Update to version v0.0.3

efecanaltay/hello-world (PHP):

Affected version(s) =dev-master

Fix Suggestion:

Update to version no_fix

pterodactyl/panel (PHP):

Affected version(s) >=dev-develop <dev-eggs/rust

Fix Suggestion:

Update to version dev-eggs/rust

frankyframework/franky2 (PHP):

Affected version(s) =dev-main

Fix Suggestion:

Update to version no_fix

pterodactyl/panel (PHP):

Affected version(s) =dev-fix-2094 <dev-issue/3535

Fix Suggestion:

Update to version dev-issue/3535

xlabs/notifybundle (PHP):

Affected version(s) >=dev-master <=1.0.14

Fix Suggestion:

Update to version no_fix

ksaitechnologies/yii2-app-kernel (PHP):

Affected version(s) =dev-dich <dev-master

Fix Suggestion:

Update to version dev-master

oceancodex/wpsp (PHP):

Affected version(s) >=8.2.0 <8.2.1

Fix Suggestion:

Update to version 8.2.1

panda-coder/phpanda (PHP):

Affected version(s) =dev-master <dev-oldMaster

Fix Suggestion:

Update to version dev-oldMaster

bobzhai/apps (PHP):

Affected version(s) >=dev-master <=1.0.0

Fix Suggestion:

Update to version no_fix

yewei-cao/noodle (PHP):

Affected version(s) >=dev-dependabot/npm_and_yarn/path-parse-1.0.7 <dev-dependabot/npm_and_yarn/y18n-3.2.2

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/y18n-3.2.2

pterodactyl/panel (PHP):

Affected version(s) >=dev-Softwarenoob/docker-readme <dev-dane/fiddle-with-new-tables

Fix Suggestion:

Update to version dev-dane/fiddle-with-new-tables

pusaka3/framework (PHP):

Affected version(s) >=dev-develop <=v3.0.1

Fix Suggestion:

Update to version no_fix

novosga/novosga (PHP):

Affected version(s) =v3.0.x-dev <dev-dependabot/composer/twig/twig-3.14.0

Fix Suggestion:

Update to version dev-dependabot/composer/twig/twig-3.14.0

dickyermawan/yii2-socketio (PHP):

Affected version(s) >=dev-master <=v1.0

Fix Suggestion:

Update to version no_fix

zhangjf108/php-framework-application (PHP):

Affected version(s) =dev-master

Fix Suggestion:

Update to version no_fix

oceancodex/wpsp (PHP):

Affected version(s) >=8.1.0 <8.1.1

Fix Suggestion:

Update to version 8.1.1

foodsharing/foodsharing (PHP):

Affected version(s) =dev-master

Fix Suggestion:

Update to version no_fix

novosga/novosga (PHP):

Affected version(s) =2.0.0-RC1 <v2.0.0-RC1

Fix Suggestion:

Update to version v2.0.0-RC1

novosga/novosga (PHP):

Affected version(s) =v2.2.x-dev <dev-dependabot/composer/twig/twig-2.14.11

Fix Suggestion:

Update to version dev-dependabot/composer/twig/twig-2.14.11

jagermesh/bright (PHP):

Affected version(s) >=v2.0.10 <v2.0.12

Fix Suggestion:

Update to version v2.0.12

scancode/portal-module (PHP):

Affected version(s) >=v0.0.1 <dev-dependabot/npm_and_yarn/Resources/assets/coreui/decode-uri-component-0.2.2

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/Resources/assets/coreui/decode-uri-component-0.2.2

originalsystems/yii2-app-kernel (PHP):

Affected version(s) >=v0.2.7 <v1.0.2

Fix Suggestion:

Update to version v1.0.2

sombrerodepaja/franky-skeleton-application (PHP):

Affected version(s) >=dev-dependabot/npm_and_yarn/engine.io-and-browser-sync-6.2.1 <dev-dev

Fix Suggestion:

Update to version dev-dev

chrisbraybrooke/laravel-ecommerce (PHP):

Affected version(s) >=v0.0.17 <0.0.56

Fix Suggestion:

Update to version 0.0.56

pterodactyl/panel (PHP):

Affected version(s) =dev-dane/restore-backups <dev-dane/sanctum

Fix Suggestion:

Update to version dev-dane/sanctum

yanev/laraadmin (PHP):

Affected version(s) >=dev-master <=2.0.2

Fix Suggestion:

Update to version no_fix

flexxia/flexprimeng (PHP):

Affected version(s) =dev-dependabot/npm_and_yarn/css/postcss/minimist-1.2.8 <dev-dependabot/npm_and_yarn/css/postcss/ini-1.3.8

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/css/postcss/ini-1.3.8

anupsathya/umd_bootstrap_sass (PHP):

Affected version(s) >=v0.2.7 <=v0.2.14

Fix Suggestion:

Update to version no_fix

mmi/mmi-cms (PHP):

Affected version(s) >=2.2.9.1 <2.3.1

Fix Suggestion:

Update to version 2.3.1

touskar/php-socket-io-event-emitter (PHP):

Affected version(s) =dev-master

Fix Suggestion:

Update to version no_fix

novosga/novosga (PHP):

Affected version(s) =v2.1.x-dev <v2.1.1

Fix Suggestion:

Update to version v2.1.1

johnrazeur/php-socket-io-event-emitter (PHP):

Affected version(s) >=dev-master <v1.0.0

Fix Suggestion:

Update to version v1.0.0

flexxia/flexprimeng (PHP):

Affected version(s) =dev-anguarJs-v7 <dev-dependabot/npm_and_yarn/css/postcss/y18n-3.2.2

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/css/postcss/y18n-3.2.2

ksaitechnologies/yii2-app-kernel (PHP):

Affected version(s) >=v0.2.7 <v1.0.2

Fix Suggestion:

Update to version v1.0.2

mriso_dev/nodejschat (PHP):

Affected version(s) =dev-master

Fix Suggestion:

Update to version no_fix

mahendraempyreal/emp-chat (PHP):

Affected version(s) >=dev-main <1.0.0

Fix Suggestion:

Update to version 1.0.0

novosga/novosga (PHP):

Affected version(s) =dev-dependabot/composer/symfony/cache-4.3.11 <dev-dependabot/composer/symfony/serializer-4.4.35

Fix Suggestion:

Update to version dev-dependabot/composer/symfony/serializer-4.4.35

chrisbraybrooke/laravel-ecommerce (PHP):

Affected version(s) >=0.0.4 <0.0.17

Fix Suggestion:

Update to version 0.0.17

dgenies (PYTHON):

Affected version(s) >=1.2.0.1 <=1.5.0

Fix Suggestion:

Update to version no_fix

electrscash (RUST):

Affected version(s) =1.0.0 <1.1.1

Fix Suggestion:

Update to version 1.1.1

Related Resources (1)

https://github.com/socketio/socket.io/commit/f78a575f66ab693c3ea96ea88429ddb1a44c86c7

Do you need more information?

CVSS 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