CVE-2026-40543

Description

SOPlanning does not enforce authorization for backup functionalities. An unauthenticated attacker can directly query backup-related endpoints and retrieve backup archives containing user databases with usernames and password hashes, as well as the config.csv file, which includes additional sensitive information. This issue affects SOPlanning version 1.55 and below.

References

• https://cert.pl/en/posts/2026/06/CVE-2026-40543
• https://www.soplanning.org/en/