CVE-2026-40547: Path Traversal in SOPlanning

Severity: medium (CVSS 6.4 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-07-22
Weakness: CWE-22

Description

SOPlanning is vulnerable to Path Traversal in backup endpoints. Authenticated remote attacker is able to exploit a vulnerable endpoint and construct payloads that allow reading and executing files previously added through the backup functionality. Critically, due to CVE-2026-40543 (Missing Authorization), any backup file can be read by any (unauthorized) user. This issue affects SOPlanning version 1.55 and below.

Affected products

SOPlanning: through 1.55

References

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

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