{"id":"CVE-2026-83621","published":"2026-09-21T17:19:08.590","lastModified":"2026-09-23T17:17:50.090","description":"ntopng is a web-based network traffic monitoring application. Prior to 6.7.260717, POST /lua/rest/v2/edit/system/edit_blacklist.lua in scripts/lua/rest/v2/edit/system/edit_blacklist.lua lacks an administrator check and calls lists_utils.editList for any authenticated user. The list_name, list_enabled, url, and list_update parameters allow a non-admin user to redirect threat-intelligence downloads to attacker-controlled content, disable blocklists, or prevent scheduled updates. The changes are persisted through Redis and reloaded without a lower-level authorization guard, undermining the integrity and availability of ntopng's threat-intelligence monitoring. This issue is fixed in version 6.7.260717.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cwes":["CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://github.com/ntop/ntopng/commit/1d0627d802c59130c82478a4eb7f14014064eae5","tags":[]},{"url":"https://github.com/ntop/ntopng/commit/669589fe208fc932fe40a840e0de8e4d9df6023f","tags":[]},{"url":"https://github.com/ntop/ntopng/security/advisories/GHSA-ffg5-889g-f5q8","tags":[]}],"exploitRefs":[{"url":"https://github.com/ntop/ntopng/commit/1d0627d802c59130c82478a4eb7f14014064eae5","tags":[]},{"url":"https://github.com/ntop/ntopng/commit/669589fe208fc932fe40a840e0de8e4d9df6023f","tags":[]},{"url":"https://github.com/ntop/ntopng/security/advisories/GHSA-ffg5-889g-f5q8","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows non-admin users to modify system settings, including threat-intelligence blocklists, potentially leading to unauthorized content access and disruption of monitoring.","exploitability":"Exploitation requires an authenticated user with write access to the specified endpoint. Precondition is the presence of a non-admin user with network access.","blast_radius":"If exploited, the impact could be significant, affecting the integrity and availability of threat-intelligence monitoring for the entire organization.","remediation":"Upgrade to version 6.7.260717 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["auth-bypass","web","configuration","monitoring"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-10-03T09:06:02.593Z"}}