{"id":"CVE-2025-59821","aliases":["GHSA-jc4g-c8ww-5738"],"url":"https://o3.security/vulnerability/CVE-2025-59821","summary":"DNN vulnerable to Reflected Cross-Site Scripting (XSS) using url to profile","details":"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 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.","published":"2025-09-23T17:42:17.239Z","modified":"2026-07-15T01:49:00.572656173Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"NuGet","name":"DotNetNuke.Core","fixedVersion":"10.1.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59821.json"},{"type":"ADVISORY","url":"https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-jc4g-c8ww-5738"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59821"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:00.572656173Z"}}