{"uuid": "d9442ea1-9f24-407e-9c15-7b9ddf7f5fb6", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2023-42450", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/18744", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2023-42450\n\ud83d\udd25 CVSS Score: 5.4 (cvssV3_1, Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N)\n\ud83d\udd39 Description: Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 4.2.0-beta1 and prior to version 4.2.0-rc2, by crafting specific input, attackers can inject arbitrary data into HTTP requests issued by Mastodon. This can be used to perform confused deputy attacks if the server configuration includes `ALLOWED_PRIVATE_ADDRESSES` to allow access to local exploitable services. Version 4.2.0-rc2 has a patch for the issue.\n\ud83d\udccf Published: 2023-09-19T15:53:39.685Z\n\ud83d\udccf Modified: 2025-06-18T14:28:57.529Z\n\ud83d\udd17 References:\n1. https://github.com/mastodon/mastodon/security/advisories/GHSA-hcqf-fw2r-52g4\n2. https://github.com/mastodon/mastodon/commit/94893cf24fc95b32cc7a756262acbe008c20a9d2", "creation_timestamp": "2025-06-18T14:41:44.000000Z"}