{"vulnerability": "cve-2019-16891", "sightings": [{"uuid": "ef529a83-a74f-42ee-afcb-a0cf1b1959f6", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2019-16891", "type": "seen", "source": "https://bsky.app/profile/beikokucyber.bsky.social/post/3lvjlb7djqy2b", "content": "", "creation_timestamp": "2025-08-03T21:02:27.191740Z"}, {"uuid": "7b50e9e1-6684-4a77-a70a-45b4bce79bf8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2019-16891", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/7496", "content": "#Threat_Research\n1. Prototype Pollution in Python\nhttps://blog.abdulrah33m.com/prototype-pollution-in-python\n2. Pre-Auth RCE in Liferay Portal CE (CVE-2019-16891)\nhttps://y4tacker.github.io/2023/01/03/year/2023/TetCTF2023-Liferay-CVE-2019-16891-Pre-Auth-RCE", "creation_timestamp": "2023-01-06T11:07:01.000000Z"}, {"uuid": "51f182d2-f83a-403b-a300-d78d60ee62d7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2019-16891", "type": "seen", "source": "https://t.me/arpsyndicate/2576", "content": "#ExploitObserverAlert\n\nCVE-2019-16891\n\nDESCRIPTION: Exploit Observer has 10 entries related to CVE-2019-16891. Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.\n\nFIRST-EPSS: 0.012890000\nNVD-IS: 5.9\nNVD-ES: 3.9", "creation_timestamp": "2024-01-06T21:41:50.000000Z"}, {"uuid": "17032f09-e6b3-4c1f-b9c9-f01a134171c4", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2019-16891", "type": "published-proof-of-concept", "source": "https://t.me/crackcodes/2121", "content": "#Threat_Research\n1. Prototype Pollution in Python\nhttps://blog.abdulrah33m.com/prototype-pollution-in-python\n2. Pre-Auth RCE in Liferay Portal CE (CVE-2019-16891)\nhttps://y4tacker.github.io/2023/01/03/year/2023/TetCTF2023-Liferay-CVE-2019-16891-Pre-Auth-RCE", "creation_timestamp": "2023-01-06T17:16:11.000000Z"}]}