| Title | diem-project diem 116974edfb9a5b8bd69cb13586dc62bcdbb485ad Open Redirect |
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| Description | The front-end and administrative sign-in actions in `dmCorePlugin/plugins/dmUserPlugin/modules/dmUser` and `dmUserAdmin` store the untrusted HTTP `Referer` in session state and redirect to it after successful authentication. The front registration action also redirects directly to the request `Referer`. None of these flows requires an application-relative target or validates the destination host. An attacker can send a victim to a Diem sign-in page from an attacker-controlled site and cause the authenticated victim, including an administrator, to be redirected to an external phishing or content-delivery site.
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| Source | ⚠️ https://github.com/diem-project/diem/issues/457 |
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| User | cnluminous (UID 98136) |
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| Submission | 09/30/2026 18:06 (26 days ago) |
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| Moderation | 10/18/2026 11:52 (18 days later) |
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| Status | Accepted |
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| VulDB entry | 421688 [diem-project diem up to 116974edfb9a5b8bd69cb13586dc62bcdbb485ad Sign-In BasedmUserActions.class.php Referer redirect] |
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| Points | 20 |
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