{"id":"CVE-2025-30158","summary":"NamelessMC Forum iframe width/height abuse causing UI-based Denial of Service","details":"NamelessMC is a free, easy to use & powerful website software for Minecraft servers. In version 2.1.4 and prior, the forum allows users to post iframe elements inside forum topics/comments/feed with no restriction on the iframe's width and height attributes. This allows an authenticated attacker to perform a UI-based denial of service (DoS) by injecting oversized iframes that block the forum UI and disrupt normal user interactions. This issue has been patched in version 2.2.0.","aliases":["GHSA-2prx-rgr7-hq5f"],"modified":"2026-08-12T03:51:14.403988650Z","published":"2025-04-18T15:50:49.309Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/30xxx/CVE-2025-30158.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-400"]},"references":[{"type":"WEB","url":"https://github.com/NamelessMC/Nameless/releases/tag/v2.2.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/30xxx/CVE-2025-30158.json"},{"type":"ADVISORY","url":"https://github.com/NamelessMC/Nameless/security/advisories/GHSA-2prx-rgr7-hq5f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-30158"},{"type":"FIX","url":"https://github.com/NamelessMC/Nameless/commit/caa42a975338a13fbc1658e8c440108f16135643"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/namelessmc/nameless","events":[{"introduced":"0"},{"fixed":"4726f43c3e637ca6c97a3bc813794311ef523ea6"},{"fixed":"caa42a975338a13fbc1658e8c440108f16135643"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:namelessmc:nameless:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.2.0"}]}}],"versions":["v2.0.2","v2.0.1","v2.0.0","v2.0.0-pr13","v2.0.0-pr11","v2.0.0-pr10","v2.0.0-pr8","v2.0.0-pr7","v2.0.0-pr6","v2.0.0-pr5","v2.0.0-pr4","v2.0.0-pr3","v2.0.0-pr2","v2.0.0-pr1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-30158.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H"}]}