{"id":"CVE-2026-87901","title":"Improper sanitization in the registration module allows reflected Cross-Site Scripting.","summary":"Improper sanitization in the registration module allows reflected Cross-Site Scripting.","severity":"high","cvss":8.3,"cvssVector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L","cvssSource":"cna","cwe":["CWE-79"],"vendor":"phpBB","product":"phpBB","affected":["phpBB >= 3.3.0 <= 3.3.18"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T16:15:05.780Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-87901","references":[{"url":"https://www.phpbb.com/community/viewtopic.php?t=2675305"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T16:31:11.322Z","slug":"CVE-2026-87901","body":"## Overview\n\nImproper sanitization in the registration module allows reflected Cross-Site Scripting.\n\n## Affected\n\n- `phpBB >= 3.3.0 <= 3.3.18`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":45.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}