| Title | KoaJS Koa <=3.0.0 commit cb22d8dc Open Redirect |
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| Description | In the latest version of Koa (<=3.0.0 commit cb22d8dc ), the back method used for redirect operations adopts an insecure implementation, which uses the user-controllable referrer header as the redirect target. |
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| Source | ⚠️ https://github.com/koajs/koa/issues/1892 |
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| User | ZAST.AI (UID 87884) |
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| Submission | 07/21/2025 11:47 (11 months ago) |
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| Moderation | 07/24/2025 17:24 (3 days later) |
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| Status | Accepted |
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| VulDB entry | 317514 [KoaJS Koa up to 3.0.0 HTTP Header lib/response.js back Referrer redirect] |
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| Points | 17 |
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