Authorization Bypass in SOPlanning by SOPlanning Team
CVE-2026-40543

8.8HIGH

Key Information:

Vendor

Soplanning

Status
Soplanning
Vendor
CVE Published:
1 June 2026

What is CVE-2026-40543?

The SOPlanning software lacks proper authorization checks for its backup functionalities, enabling an unauthenticated attacker to interact directly with backup-related endpoints. This vulnerability allows the retrieval of backup archives that may contain critical user data, such as usernames, password hashes, and sensitive configuration files. Affected versions include SOPlanning 1.55 and earlier, thereby exposing users to potential data breaches and security threats.

Affected Version(s)

SOPlanning 0 <= 1.55

References

https://cert.pl/en/posts/2026/06/CVE-2026-40543
third-party-advisory
https://www.soplanning.org/en/
product

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Łukasz Jaworski
.