CVE-2026-5147
Published: 30 March 2026
Summary
CVE-2026-5147 is a medium-severity Injection (CWE-74) vulnerability. Its CVSS base score is 6.9 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 14.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and RA-5 (Vulnerability Monitoring and Scanning).
Deeper analysis
CVE-2026-5147 is a SQL injection vulnerability affecting YunaiV yudao-cloud versions up to 2026.01. The flaw resides in an unknown component of the /admin-api/system/tenant/get-by-website endpoint, where manipulation of the "Website" argument triggers the injection. Associated with CWE-74 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-89 (SQL Injection), it carries a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L), indicating high severity due to its network accessibility and lack of prerequisites.
The vulnerability enables remote exploitation without authentication or user interaction. Attackers can send crafted requests to the affected endpoint, potentially extracting sensitive data, modifying database contents, or disrupting service availability, albeit with low impact levels across confidentiality, integrity, and availability. Recent publication on 2026-03-30 underscores its immediacy for exposed instances.
Advisories from VulDB (vuln/354181) and a GitHub security note detail the discovery, including a proof-of-concept in the repository at NarcherAlter/Security_Note. No vendor response or patches are available, as the developer was contacted early but did not engage. Security teams should isolate or decommission affected yudao-cloud deployments pending remediation.
An exploit has been publicly released, increasing the risk of active attacks against internet-facing systems.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-17168
Vulnerability details
A security flaw has been discovered in YunaiV yudao-cloud up to 2026.01. This affects an unknown part of the file /admin-api/system/tenant/get-by-website. The manipulation of the argument Website results in sql injection. It is possible to launch the attack remotely. The…
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exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The SQL injection vulnerability in a publicly accessible web API endpoint (/admin-api/system/tenant/get-by-website) directly enables remote, unauthenticated exploitation of a public-facing application.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly prevents SQL injection by requiring validation and sanitization of the untrusted 'Website' input parameter in the vulnerable endpoint.
Addresses the flaw through timely remediation processes, including monitoring for patches or workarounds despite lack of vendor response.
Enables detection of the SQL injection vulnerability via regular scanning of the affected yudao-cloud application and endpoint.