{"id":"CVE-2026-110103","revision":"7e818cd316d441f78ff86bf6c9b8b31a","records":[{"revision":"7e818cd316d441f78ff86bf6c9b8b31a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-110103","aliases":[],"title":"bbs-go through 4.4.6 Stored XSS via Image Upload Content-Type","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.","state":0,"publishedAt":"2026-10-13T16:53:06.263+00:00","modifiedAt":"2026-10-14T15:59:17.37+00:00","affected":[{"ecosystem":"Vendor product","name":"bbs-go","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"mlogclub\",\n                    \"product\": \"bbs-go\",\n                    \"packageURL\": \"pkg:github/mlogclub/bbs-go\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"4.4.6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/mlogclub/bbs-go\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","score":5.1,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/mlogclub/bbs-go/issues/305","https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/pkg/uploader/uploader.go#L90-L121","https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/handlers/api/upload_handlers.go#L36-L54","https://github.com/mlogclub/bbs-go/pull/306","https://github.com/mlogclub/bbs-go/commit/5bebf98bb9e0ac5162d4f8faf7a65fc0d496a362","https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-stored-xss-via-image-upload-content-type"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110103","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-110103","identifiers":["CVE-2026-110103"]},"retained":false,"historicalAffected":[]}],"coverage":[]}