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Leave Management System CVE-2026-9542

| EUVD-2026-31815 LOW
SQL Injection (CWE-89)
2026-05-26 VulDB GHSA-jmrp-7jjm-qhcc
2.1
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.1 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Analysis Generated
Jun 08, 2026 - 12:53 vuln.today
Severity Changed
May 26, 2026 - 14:22 NVD
MEDIUM LOW
CVSS changed
May 26, 2026 - 14:22 NVD
6.3 (MEDIUM) 2.1 (LOW)

DescriptionCVE.org

A weakness has been identified in CodeAstro Leave Management System 1.0. The affected element is an unknown function of the file /admin/add_staff.php. Executing a manipulation of the argument email_id can lead to sql injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

AnalysisAI

SQL injection in CodeAstro Leave Management System 1.0 allows authenticated remote attackers to manipulate the email_id parameter in /admin/add_staff.php, enabling arbitrary SQL query manipulation against the underlying database. The CVSS 4.0 score of 2.1 (Low) reflects constrained impact scope - confidentiality, integrity, and availability are each rated Low with no lateral impact to subsequent systems - and EPSS at 0.03% (8th percentile) indicates negligible real-world exploitation probability despite a publicly available proof-of-concept on GitHub. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain admin credentials via phishing or reuse
Delivery
Authenticate to /admin/ panel
Exploit
Submit crafted HTTP request to /admin/add_staff.php
Execution
Inject SQL payload in email_id parameter
Impact
Extract or modify database records

Vulnerability AssessmentAI

Exploitation The CVSS 4.0 vector PR:L confirms that at minimum low-privileged authentication is required; the `/admin/` path in the vulnerable endpoint strongly implies administrative panel access is the realistic requirement, meaning an attacker must first obtain valid admin credentials through phishing, credential stuffing, or another vector. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Multiple signals converge on a low real-world priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with administrative credentials to the CodeAstro Leave Management System authenticates to the admin panel and submits a crafted HTTP request to `/admin/add_staff.php` with a malicious `email_id` value such as `' OR 1=1 UNION SELECT ...--`, causing the backend SQL query to return or modify unintended data. A publicly available proof-of-concept on GitHub (https://github.com/wangchaoxing/CVE/issues/8) demonstrates the technique, lowering the bar for exploitation to script-kiddie level for any attacker already holding admin credentials.
Remediation No vendor-released patch has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-9542 vulnerability details – vuln.today

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