{"id":"CVE-2026-63197","published":"2026-11-03T19:18:08.907","lastModified":"2026-11-03T23:17:50.943","description":"traQ is a messenger application built for Digital Creators Club traP. Prior to 3.28.3, instances configured with TRAQ_STORAGE_TYPE=local can return user-uploaded SVG or HTML content from the /files/{fileId} retrieval endpoint for direct browser rendering. An attacker with file-upload capability can provide crafted active content and induce another user to open its file URL, causing attacker-controlled JavaScript to execute in the victim's browser. This issue is fixed in version 3.28.3.","cvssScore":7.3,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/traPtitech/traQ/commit/3db29e7771661f6418d88d186d8ff7817f5d6b6e","tags":[]},{"url":"https://github.com/traPtitech/traQ/releases/tag/v3.28.3","tags":[]},{"url":"https://github.com/traPtitech/traQ/security/advisories/GHSA-p74g-f95m-7fx7","tags":[]}],"exploitRefs":[{"url":"https://github.com/traPtitech/traQ/commit/3db29e7771661f6418d88d186d8ff7817f5d6b6e","tags":[]},{"url":"https://github.com/traPtitech/traQ/releases/tag/v3.28.3","tags":[]},{"url":"https://github.com/traPtitech/traQ/security/advisories/GHSA-p74g-f95m-7fx7","tags":[]}],"hasPoc":true,"ai":null}