{"id":"CVE-2025-59821","title":"DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem","summary":"DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, DNN’s URL/path handling and template rendering can allow specially crafted input to be reflected into …","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cwe":["CWE-79"],"vendor":"dnnsoftware","product":"dotnetnuke","affected":["dotnetnuke < 10.1.0"],"patched":["dotnetnuke 10.1.0"],"published":"2025-09-23","updated":"2026-10-11","sourceUpdated":"2026-10-11T20:10:00.200","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-59821","references":[{"url":"https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-jc4g-c8ww-5738","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00212,"epssPercentile":0.10621,"ingestedAt":"2026-10-12T14:50:33.984Z","slug":"CVE-2025-59821","body":"## Overview\n\nDNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, DNN’s URL/path handling and template rendering can allow specially crafted input to be reflected into a user profile that is returned to the browser. In these cases, the application does not sufficiently neutralize or encode characters that are meaningful in HTML, so an attacker can cause a victim’s browser to interpret attacker-controlled content as part of the page’s HTML. This issue has been patched in version 10.1.0.\n\n## Affected\n\n- `dotnetnuke < 10.1.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `dotnetnuke 10.1.0`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}