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Vulnerability record · CVE-2026-42097 · published 19 May 2026

CVE-2026-42097: Sparxsystems pro cloud server insecure direct object reference vulnerability

Sparxsystems · Pro Cloud Server

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.

9.3 CVSS 4.0 Critical EPSS 0.91% · top 41.6% CWE-639 · Insecure direct object reference
9.3CVSS 4.0 base score
0.91%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert.pl/en/posts/2026/05/CVE-2026-42096 Third Party Advisory
https://efigo.pl/blog/CVE-2026-42096/ Third Party Advisory
https://sparxsystems.com/products/procloudserver/ Product
https://sploit.tech/2026/05/19/Sparx-Enterprise-Architect-PCS.html ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.5CVE-2025-15625Sparxsystems pro cloud server sql injection vulnerabilityUnauthenticated user is able to execute arbitrary SQL commands in Sparx Pro Cloud Server database in certain cases.EPSS 0.42%9.3CVE-2025-15623Sparxsystems pro cloud server vulnerabilityExposure of Private Personal Information to an Unauthorized Actor, : Exposure of Sensitive System Information to an Unauthorized Control Sphere vulne…EPSS 0.26%9.3CVE-2025-15624Sparxsystems pro cloud server vulnerabilityPlaintext Storage of a Password vulnerability in Sparx Systems Pty Ltd. Sparx Pro Cloud Server.  In a setup where OpenID is used as the primary metho…EPSS 0.38%8.7CVE-2026-42096Sparxsystems pro cloud server incorrect authorization vulnerabilitySparx Pro Cloud Server is vulnerable to Broken Access Control within communication with the database. Due to lack of permission checks, any low privi…EPSS 0.59%7.7CVE-2026-42099Sparxsystems pro cloud server race condition vulnerabilitySparx Pro Cloud Server is vulnerable to a Race Condition in the /data_api/dl_internal_artifact.php endpoint. The application downloads the properties…EPSS 0.66%7.1CVE-2026-42100Sparxsystems pro cloud server vulnerabilityImproper Handling of Syntactically Invalid Structure in Sparx Pro Cloud Server allows Denial of Service (DoS) attack to be executed by sending an spe…EPSS 0.64%8.4CVE-2026-55255Langflow IDOR in responses endpoint allows cross-user flow executionLangflow before 1.9.1 has an insecure direct object reference in the /api/v1/responses endpoint. An authenticated attacker can supply another user's …KEVEPSS 0.89%analysed

Source: NIST National Vulnerability Database (record CVE-2026-42097), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.