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.
https://www.deutschepost.de/de/m/mailoptimizer.html
https://herolab.usd.de/security-advisories/usd-2020-0028/
Source: Mitre, NVD
Published: 2021-03-05
Updated: 2026-06-17
Base Score: 8.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:P/A:P
Severity: High
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.05164