{"id":"CVE-2026-110103","published":"2026-10-13T17:17:34.150","lastModified":"2026-10-16T19:18:44.867","description":"bbs-go through 4.4.6 contains a stored cross-site scripting vulnerability that allows authenticated users to upload HTML or SVG files by spoofing the multipart Content-Type in POST /api/upload. Attackers can upload script-bearing documents served inline from /res and send their URLs to administrators, executing script on the forum's origin.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/handlers/api/upload_handlers.go#L36-L54","tags":[]},{"url":"https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/pkg/uploader/uploader.go#L90-L121","tags":[]},{"url":"https://github.com/mlogclub/bbs-go/commit/5bebf98bb9e0ac5162d4f8faf7a65fc0d496a362","tags":[]},{"url":"https://github.com/mlogclub/bbs-go/issues/305","tags":[]},{"url":"https://github.com/mlogclub/bbs-go/pull/306","tags":[]},{"url":"https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-stored-xss-via-image-upload-content-type","tags":[]}],"exploitRefs":[{"url":"https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/handlers/api/upload_handlers.go#L36-L54","tags":[]},{"url":"https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/pkg/uploader/uploader.go#L90-L121","tags":[]},{"url":"https://github.com/mlogclub/bbs-go/commit/5bebf98bb9e0ac5162d4f8faf7a65fc0d496a362","tags":[]},{"url":"https://github.com/mlogclub/bbs-go/issues/305","tags":[]},{"url":"https://github.com/mlogclub/bbs-go/pull/306","tags":[]}],"hasPoc":true,"ai":null}