{"id":"CVE-2018-18325","kind":"vulnerability","aliases":["CVE-2018-18325"],"related":[],"title":"DotNetNuke (DNN) DotNetNuke (DNN): DotNetNuke (DNN) Inadequate Encryption Strength Vulnerability","description":"DotNetNuke (DNN) contains an inadequate encryption strength vulnerability resulting from the use of a weak encryption algorithm to protect input parameters. This CVE ID resolves an incomplete patch for CVE-2018-15811.\n\nCISA required action: Apply updates per vendor instructions.","summary":"DotNetNuke (DNN) uses a weak encryption algorithm to protect input parameters, so an attacker can decrypt or forge them. This is an incomplete fix for CVE-2018-15811 and is listed in CISA's Known Exploited Vulnerabilities catalog.","severity":"high","cvss":7.5,"epss":0.74048,"exploited":true,"exploited_at":"2021-11-03T00:00:00+00:00","products":[{"name":"DotNetNuke (DNN) DotNetNuke (DNN)","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["asp.net","dnn","dotnetnuke","exploited","package","self-hosted"],"not_affected_if":["unknown"],"how_to_check":"Check the installed DNN version in the site's admin or host page and compare it to the vendor's fixed release; the sources do not give a specific command.","fix":"Apply the DNN update per vendor instructions, as CISA requires; the sources do not name the fixed version.","status":"open","published_at":"2019-07-03T17:15:10+00:00","first_seen_at":"2026-10-23T19:11:53+00:00","triaged_at":"2026-10-23T21:33:43+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"package","confidence":0.5,"triage":{"at":"2026-10-23T21:33:43Z","model":"claude-haiku-5-5","output":{"fix":"Apply the DNN update per vendor instructions, as CISA requires; the sources do not name the fixed version.\nunknown","reach":"internet","impact":"medium","summary":"DotNetNuke (DNN) uses a weak encryption algorithm to protect input parameters, so an attacker can decrypt or forge them. This is an incomplete fix for CVE-2018-15811 and is listed in CISA's Known Exploited Vulnerabilities catalog.","category":"package","who_cares":["dotnetnuke","dnn","asp.net","self-hosted"],"confidence":0.5,"needs_auth":"unknown","worst_case":"unknown; weak encryption on input parameters may expose or forge them","analyst_note":"Find the fixed DNN version and the exact attack conditions from the vendor advisory and the CVE-2018-15811 record; sources give neither.","how_to_check":"Check the installed DNN version in the site's admin or host page and compare it to the vendor's fixed release; the sources do not give a specific command.\nunknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.0005,"input_tokens":2898,"output_tokens":420,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-15811':56B,98C '-18325':13A,16A '-2018':12A,15A,55B,97C 'action':101C 'algorithm':35B,83C 'appli':102C 'asp.net':21B 'attack':42B 'catalog':66B 'cisa':61B,99C 'contain':69C 'cve':11A,14A,54B,89C,96C 'decrypt':44B 'dnn':2A,4A,6A,18A,20A,22B,30B,68C 'dotnetnuk':1A,3A,5A,23B,29B,67C 'dotnetnuke':17A,19A 'encrypt':8A,34B,72C,82C 'exploit':24B,64B 'fix':52B 'forg':46B 'host':28B 'id':90C 'inadequ':7A,71C 'incomplet':51B,93C 'input':38B,86C 'instruct':106C 'known':63B 'list':59B 'packag':25B 'paramet':39B,87C 'patch':94C 'per':104C 'protect':37B,85C 'requir':100C 'resolv':91C 'result':75C 'self':27B 'self-host':26B 'strength':9A,73C 'updat':103C 'use':31B,78C 'vendor':105C 'vulner':10A,65B,74C 'weak':33B,81C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2019-07-03T17:15:10+00:00","kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2018-18325","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-18325","severity":null,"published_at":"2021-11-03T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:53+00:00","fetched_at":"2026-10-25T10:39:08+00:00","note":null},{"source":"epss","external_id":"CVE-2018-18325","url":"https://api.first.org/data/v1/epss?cve=CVE-2018-18325","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:44+00:00","fetched_at":"2026-10-23T19:13:44+00:00","note":null},{"source":"nvd","external_id":"CVE-2018-18325","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-18325","severity":null,"published_at":"2019-07-03T17:15:10+00:00","modified_at":"2026-06-17T01:47:00+00:00","first_seen_at":"2026-10-23T21:57:35+00:00","fetched_at":"2026-10-23T21:57:35+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}