{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-110103", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-13T16:22:19.909Z", "datePublished": "2026-10-13T16:53:06.263Z", "dateUpdated": "2026-10-13T16:53:06.263Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-13T16:53:06.263Z"}, "datePublic": "2026-10-08T00:00:00.000Z", "title": "bbs-go through 4.4.6 Stored XSS via Image Upload Content-Type", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "affected": [{"vendor": "mlogclub", "product": "bbs-go", "packageURL": "pkg:github/mlogclub/bbs-go", "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThanOrEqual": "4.4.6", "status": "affected", "versionType": "semver"}], "repo": "https://github.com/mlogclub/bbs-go"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:bbs-go_project:bbs-go:*:*:*:*:*:*:*:*", "versionEndIncluding": "4.4.6"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 5.1, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/mlogclub/bbs-go/issues/305", "tags": ["issue-tracking", "technical-description"]}, {"url": "https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/pkg/uploader/uploader.go#L90-L121", "tags": ["technical-description"]}, {"url": "https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/handlers/api/upload_handlers.go#L36-L54", "tags": ["technical-description"]}, {"url": "https://github.com/mlogclub/bbs-go/pull/306", "tags": ["patch", "issue-tracking"]}, {"url": "https://github.com/mlogclub/bbs-go/commit/5bebf98bb9e0ac5162d4f8faf7a65fc0d496a362", "tags": ["patch"]}, {"name": "VulnCheck Advisory: bbs-go through 4.4.6 Stored XSS via Image Upload Content-Type", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-stored-xss-via-image-upload-content-type"}], "credits": [{"lang": "en", "value": "George Chen", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:github/mlogclub/bbs-go", "product": "bbs-go", "repo": "https://github.com/mlogclub/bbs-go", "vendor": "mlogclub", "versions": [{"lessThanOrEqual": "4.4.6", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-110103", "lastModified": "2026-10-13T17:17:34.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-10-13T17:17:34.150", "references": [{"source": "[email protected]", "url": "https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/handlers/api/upload_handlers.go#L36-L54"}, {"source": "[email protected]", "url": "https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/pkg/uploader/uploader.go#L90-L121"}, {"source": "[email protected]", "url": "https://github.com/mlogclub/bbs-go/commit/5bebf98bb9e0ac5162d4f8faf7a65fc0d496a362"}, {"source": "[email protected]", "url": "https://github.com/mlogclub/bbs-go/issues/305"}, {"source": "[email protected]", "url": "https://github.com/mlogclub/bbs-go/pull/306"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-stored-xss-via-image-upload-content-type"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.4.6]"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "bbs-go", "source": "cna", "vendor": "mlogclub"}, "product": "bbs-go", "vendor": "bbs-go_project"}], "created": "2026-10-13T19:15:08.885052+00:00", "updated": "2026-10-13T20:30:15.909214+00:00", "vendors": ["bbs-go_project", "bbs-go_project$PRODUCT$bbs-go"]}