bbs-go through 4.4.6 Stored XSS via Image Upload Content-Type
Published Oct 13, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
bbs-go through 4.4.6 Stored XSS via Image Upload Content-Type
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- GitHub advisory ↗
- Source repository ↗
- Source repository ↗
- Source repository ↗
- Patch commit ↗
- VulnCheck Advisory: bbs-go through 4.4.6 Stored XSS via Image Upload Content-Type ↗
Record history
Published Oct 13, 2026 · Last refreshed Nov 3, 2026