Deutsche Post Mailoptimizer 4.3 before 2020-11-09 allows Directory Traversal via a…
Priority MEDIUM 40CWE-22Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Deutsche Post Mailoptimizer 4.3 before 2020-11-09 allows Directory Traversal via a crafted ZIP archive to the Upload feature or the MO Connect component. This can lead to remote code execution.
Why it matters now
EPSS 0.03429 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:deutschepost:mailoptimizer:4.3:*:*:*:*:*:*:* | 4.3 | Vulnerable | Deutschepost |
- cpe:2.3:a:deutschepost:mailoptimizer:4.3:*:*:*:*:*:*:* Versions 4.3 Vulnerable ·Deutschepost
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28042
- 2026-10-03 Alias added: GHSA-g95r-pfvg-gjpj
References
Sources
- CVE-2021-28042 · CVE Program
- CVE-2021-28042 · NVD
- FIRST EPSS
- GHSA-g95r-pfvg-gjpj · 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