What is the CVSS score of CVE-2026-5147?

CVE-2026-5147 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2026-5147?

Yes, a public proof-of-concept exploit is available for CVE-2026-5147. Prioritise patching immediately. EPSS: 0.0%.

Yudao Cloud CVE-2026-5147

EUVD-2026-17168 MEDIUM

SQL Injection (CWE-89)

2026-03-30 VulDB

GHSA-r78c-v88p-w43h

SQLi Yudao Cloud Yunaiv

5.5

CVSS 4.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-89 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Parameterized queries, prepared statements MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	This vulnerability presents moderate-to-high real-world risk driven by multiple convergent signals. The CVSS 4.0 vector (AV:N, AC:L, PR:N, UI:N) indicates a network-accessible endpoint requiring no authentication, user interaction, or specialized complexity-a straightforward attack surface. The CVSS Environmental scores (VC:L, VI:L, VA:L) indicate confidentiality and integrity impact; the E:P tag confirms public exploit availability. Critically, the lack of vendor response after early disclosure suggests no patch timeline, leaving affected systems unpatched indefinitely. While EPSS data is not provided, the combination of unauthenticated network access, public POC, and vendor non-responsiveness elevates this beyond a theoretical risk. The absence of KEV (CISA Known Exploited Vulnerability) status does not diminish concern-public POC availability alone creates immediate abuse risk. Organizations running yudao-cloud 2026.01 or earlier should treat this as actively exploitable and prioritize immediate mitigation or isolation.
Exploit ScenarioDerived	An unauthenticated remote attacker sends a crafted HTTP request to /admin-api/system/tenant/get-by-website with SQL injection payload in the Website parameter (e.g., Website=example.com' OR '1'='1). The application fails to sanitize this input and passes it directly into a SQL query, allowing the attacker to extract sensitive data from the database (tenant records, credentials, configuration) or modify records. Public exploit code is available on GitHub (https://github.com/NarcherAlter/Security_Note/blob/main/Vulnerability_Discovery/yudaoCloudv2026.01.md), lowering the barrier to weaponization for opportunistic attackers scanning for vulnerable instances.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 30, 2026

Remote SQL injection in YunaiV yudao-cloud up to version 2026.01 allows unauthenticated attackers to execute arbitrary SQL queries via the Website parameter in the /admin-api/system/tenant/get-by-website endpoint. The vulnerability has a CVSS score of 6.9 with public exploit code available, enabling remote compromise of database confidentiality and integrity without authentication or user interaction. The vendor has not responded to early disclosure notification.

RemediationAI

No vendor-released patch identified at time of analysis; the vendor has not responded to early disclosure notifications. Immediate mitigation options include: (1) Upgrade to a patched version if released post-2026.01 (recommended once available); (2) Implement network-level access controls to restrict access to the /admin-api/system/tenant/get-by-website endpoint to trusted internal networks only; (3) Deploy a Web Application Firewall (WAF) with SQL injection detection rules to monitor and block malicious queries targeting the Website parameter; (4) Consider temporarily disabling the tenant management API endpoint if operationally feasible. Monitor VulDB (https://vuldb.com/vuln/354181) and the vendor's GitHub repository for patch announcements. Given vendor non-responsiveness, communities may provide security patches or forks-evaluate carefully before adopting.

Affected VersionsENISA

yudao-cloud 2026.01

Affected Packages

euvd yudao_cloud no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability exists in the yudao-cloud application framework, specifically in the tenant management API endpoint /admin-api/system/tenant/get-by-website. The root cause is classified as CWE-89 (SQL Injection), stemming from insufficient input validation or parameterization of the Website parameter before it is incorporated into a SQL query. The affected product (cpe:2.3:a:yunaiv:yudao-cloud:*:*:*:*:*:*:*:*) is an open-source cloud architecture framework. The flaw allows an attacker to manipulate SQL query logic by injecting malicious SQL syntax into the Website input field, potentially bypassing authentication and authorization checks within the application's database layer.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

Low

Vulnerable system: Integrity

Low

Vulnerable system: Availability

Low

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.9 (MEDIUM) 5.5 (MEDIUM)

PoC Detected

Apr 01, 2026 - 14:24 vuln.today

Public exploit code

CVE Published

Mar 30, 2026 - 18:45 nvd

MEDIUM 6.9

DescriptionCVE.org

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 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.

Threat Intelligence Overview

EPSS Score

0.0%

Top 91% exploitable

Exploit

POC

Public exploit code exists

Data Quality

7 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.