Unauthenticated SQL execution via model parameter mismatch
Published May 19, 2026 · Updated May 19, 2026
Authentication bypass in Sparx Systems Pro Cloud Server 6.1 and earlier allows remote attackers to execute SQL without credentials. The authentication layer selects its check from the URL model parameter, while SQL execution reads the model name from the binary POST body, so omitting the URL value skips authentication. Network access to the server is sufficient to read, write, or delete repository database data in the database user's context.
Summary
What happened
Authentication bypass in Sparx Systems Pro Cloud Server 6.1 and earlier allows remote attackers to execute SQL without credentials. The authentication layer selects its check from the URL model parameter, while SQL execution reads the model name from the binary POST body, so omitting the URL value skips authentication. Network access to the server is sufficient to read, write, or delete repository database data in the database user's context.
The record
- CVE
- CVE-2026-42097
- Published
- May 19, 2026
- Updated
- May 19, 2026
- Vendor
- Sparx Systems
- Product
- Pro Cloud Server
- Classifications
- CWE-639, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 19, 2026CVE publishedPublication date reported by the CVE source.
- May 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=6.1
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Sparx Pro Cloud Server proof-of-concept exploit chainproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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