Description
LibreDesk before 2.9.0-rc.8 contains a stored cross-site scripting vulnerability that allows authenticated agents to execute script by uploading SVGs with malformed Content-Type parameters. Attackers can upload an SVG typed 'image/svg+xml; x' via /api/v1/media so GET /uploads/{uuid} serves it inline without sandbox, running script in any viewing agent's or administrator's session.
Metrics
CVSS 3.1 5.4/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| abhinavxd | libredesk | < 2.9.0-rc.8 |
References
- https://github.com/abhinavxd/libredesk
- https://github.com/abhinavxd/libredesk/blob/086b08200d667f2cc083635e925d6f5e7b0097e3/cmd/media.go#L255-L272
- https://github.com/abhinavxd/libredesk/blob/086b08200d667f2cc083635e925d6f5e7b0097e3/internal/media/media.go#L422-L433
- https://github.com/abhinavxd/libredesk/commit/ab3a5ca682fcc1caec0950fc607b66caea49bec3
- https://github.com/abhinavxd/libredesk/pull/641
- https://github.com/abhinavxd/libredesk/releases/tag/v2.9.0-rc.8
- https://www.vulncheck.com/advisories/libredesk-before-2.9.0-rc.8-stored-xss-via-svg-upload-content-type-parameter
Timeline
- Published
- Oct 15, 2026
- Last modified
- Oct 16, 2026
- NVD status
- Deferred