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Description

Sparx Pro Cloud Server requires authentication based on requested URL. An attacker can omit the "model" query parameter and send the model name only in the binary blob in POST request allowing SQL query execution without authentication. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.1 (build 167) and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

PUBLISHED Reserved 2026-04-24 | Published 2026-05-19 | Updated 2026-05-19 | Assigner CERT-PL




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Problem types

CWE-639 Authorization Bypass Through User-Controlled Key

Product status

Default status
unknown

Any version
affected

Credits

Blazej Adamczyk (br0x) - Efigo finder

References

cert.pl/en/posts/2026/05/CVE-2026-42096 third-party-advisory

sparxsystems.com/products/procloudserver/ product

sploit.tech/2026/05/19/Sparx-Enterprise-Architect-PCS.html technical-description

efigo.pl/blog/CVE-2026-42096/ third-party-advisory

cve.org (CVE-2026-42097)

nvd.nist.gov (CVE-2026-42097)

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