Blossom File Upload BLOSManager.java put path traversal
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A flaw has been found in Blossom up to 1.17.1. This issue affects the function put of the file blossom-backend/common/common-iaas/src/main/java/com/blossom/common/iaas/blos/BLOSManager.java of the component File Upload. This manipulation causes path traversal. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Blossom | 1.17.0; 1.17.1 | — | No fix listed | CNA |
- Blossom Vendor— Affected 1.17.0; 1.17.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2623
- 2026-10-03 Alias added: GHSA-crg7-mqpm-5qr4
References
More Wangyunf Blossom vulnerabilities
- TI-2026-02238 Blossom Article Title ArticleController.java content cross site scripting CVSS 4.0MEDIUM 5.1
Sources
- CVE-2026-2623 · CVE Program
- CVE-2026-2623 · NVD
- FIRST EPSS
- GHSA-crg7-mqpm-5qr4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences