cvedb.io
CVE-2026-56843
CRITICAL · CVSS 9.9
EPSS exploitation probability: 0%
Published 2026-07-08T01:16:28.277 · Last modified 2026-07-08T01:16:28.277

Summary

Incorrect authorization in the XML-RPC API of WebPros Plesk before 18.0.78.4 allows a low-privileged authenticated customer to look up domains they do not own, because ownership is enforced only for certain lookup filters and schema validation is bypassed for legacy protocol versions. This results in cross-tenant disclosure of other tenants' FTP credentials stored in cleartext, which can be leveraged to execute code as another tenant's system user.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.