{"vulnerability": "cve-2025-27157", "sightings": [{"uuid": "ab00e96c-a1f3-4604-a918-9ffe0c90aca9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2025-27157", "type": "seen", "source": "MISP/24306fae-b16b-4478-9297-d2973cdb583c", "content": "", "creation_timestamp": "2025-08-22T14:52:22.000000Z"}, {"uuid": "ff64200f-d5f5-4999-b3da-165c7fe6f6a7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2025-27157", "type": "seen", "source": "https://infosec.exchange/users/cR0w/statuses/114077225711677534", "content": "", "creation_timestamp": "2025-02-27T18:18:44.617425Z"}, {"uuid": "7348c862-65da-4aa8-808a-800f322c11dc", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2025-27157", "type": "seen", "source": "https://t.me/cvedetector/19050", "content": "{\n  \"Source\": \"CVE FEED\",\n  \"Title\": \"CVE-2025-27157 - Mastodon Email Address Spoofing Vulnerability\", \n  \"Content\": \"CVE ID : CVE-2025-27157 \nPublished : Feb. 27, 2025, 5:15 p.m. | 17\u00a0minutes ago \nDescription : Mastodon is a self-hosted, federated microblogging platform. Starting in version 4.2.0 and prior to versions 4.2.16 and 4.3.4, the rate limits are missing on `/auth/setup`. Without those rate limits, an attacker can craft requests that will send an email to an arbitrary addresses. Versions 4.2.16 and 4.3.4 fix the issue. \nSeverity: 5.3 | MEDIUM \nVisit the link for more details, such as CVSS details, affected products, timeline, and more...\",\n  \"Detection Date\": \"27 Feb 2025\",\n  \"Type\": \"Vulnerability\"\n}\n\ud83d\udd39 t.me/cvedetector \ud83d\udd39", "creation_timestamp": "2025-02-27T19:15:38.000000Z"}, {"uuid": "179f45ff-c628-4acb-8839-4274c0b3fb8a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2025-27157", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/5720", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2025-27157\n\ud83d\udd25 CVSS Score: 5.3 (cvssV3_1, Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)\n\ud83d\udd39 Description: Mastodon is a self-hosted, federated microblogging platform. Starting in version 4.2.0 and prior to versions 4.2.16 and 4.3.4, the rate limits are missing on `/auth/setup`. Without those rate limits, an attacker can craft requests that will send an email to an arbitrary addresses. Versions 4.2.16 and 4.3.4 fix the issue.\n\ud83d\udccf Published: 2025-02-27T17:12:39.043Z\n\ud83d\udccf Modified: 2025-02-27T17:12:39.043Z\n\ud83d\udd17 References:\n1. https://github.com/mastodon/mastodon/security/advisories/GHSA-v39f-c9jj-8w7h\n2. https://github.com/mastodon/mastodon/commit/06f879ce9bea195344ac9f71e6799eea500628ec", "creation_timestamp": "2025-02-27T17:25:14.000000Z"}]}