Vulnerability	Vulnerable Version
L Missing Origin Validation in WebSockets next is a react framework. Affected versions of this package are vulnerable to Missing Origin Validation in WebSockets when running next dev and the project uses the App Router. An attacker can access the source code of client components by exploiting the Cross-site WebSocket hijacking (CSWSH) attack when a user visits a malicious link while having the server running locally. How to fix Missing Origin Validation in WebSockets? Upgrade `next` to version 14.2.30, 15.2.2 or higher.	>=13.0.0 <14.2.30>=15.0.0-rc.0 <15.2.2
C Improper Authorization next is a react framework. Affected versions of this package are vulnerable to Improper Authorization due to the improper handling of the `x-middleware-subrequest` header. An attacker can bypass authorization checks by sending crafted requests containing this specific header. How to fix Improper Authorization? Upgrade `next` to version 12.3.5, 13.5.9, 14.2.25, 15.2.3, 15.3.0-canary.12 or higher.	>=11.1.4 <12.3.5>=13.0.0 <13.5.9>=14.0.0 <14.2.25>=15.0.0-rc.0 <15.2.3>=15.3.0-canary.0 <15.3.0-canary.12

Missing Origin Validation in WebSockets

next is a react framework.

Affected versions of this package are vulnerable to Missing Origin Validation in WebSockets when running next dev and the project uses the App Router. An attacker can access the source code of client components by exploiting the Cross-site WebSocket hijacking (CSWSH) attack when a user visits a malicious link while having the server running locally.

How to fix Missing Origin Validation in WebSockets?

Upgrade next to version 14.2.30, 15.2.2 or higher.

>=13.0.0 <14.2.30>=15.0.0-rc.0 <15.2.2

Improper Authorization

next is a react framework.

Affected versions of this package are vulnerable to Improper Authorization due to the improper handling of the x-middleware-subrequest header. An attacker can bypass authorization checks by sending crafted requests containing this specific header.

How to fix Improper Authorization?

Upgrade next to version 12.3.5, 13.5.9, 14.2.25, 15.2.3, 15.3.0-canary.12 or higher.

>=11.1.4 <12.3.5>=13.0.0 <13.5.9>=14.0.0 <14.2.25>=15.0.0-rc.0 <15.2.3>=15.3.0-canary.0 <15.3.0-canary.12

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