Which versions of PHP are affected by CVE-2026-1589?

A high-severity vulnerability in School Management System 1.0 allows unauthenticated attackers to exploit the inquiry module, potentially compromising student and institutional data.

Is there a public PoC exploit available for CVE-2026-1589?

Yes, a public proof-of-concept exploit is available for CVE-2026-1589. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-1589?

Within 24 hours: Identify all instances of School Management System 1.0 in your environment and isolate affected systems from public-facing networks. Within 7 days: Implement compensating controls including WAF rules to block requests to /ramonsys/inquiry/index.php, enforce network segmentation, and enable enhanced logging on affected systems. Within 30 days: Contact the vendor for patch availability, evaluate alternative solutions, or plan for system replacement if patches remain unavailable.

PHP CVE-2026-1589

Q: What is the CVSS score of CVE-2026-1589?

CVE-2026-1589 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/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. EPSS exploitation probability: 0.0%.

MEDIUM

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2026-01-29 cna@vuldb.com

PHP SQLi

5.5

CVSS 4.0 · NVD

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/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:N/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

None

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 01:11 NVD

7.3 (HIGH) 5.5 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 22:00 vuln.today

PoC Detected

Feb 02, 2026 - 19:25 vuln.today

Public exploit code

CVE Published

Jan 29, 2026 - 15:16 nvd

HIGH 7.3

DescriptionCVE.org

A vulnerability was determined in itsourcecode School Management System 1.0. This affects an unknown function of the file /ramonsys/inquiry/index.php. This manipulation of the argument txtsearch causes sql injection. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized.

AnalysisAI

SQL injection in itsourcecode School Management System 1.0 via the txtsearch parameter in /ramonsys/inquiry/index.php enables unauthenticated remote attackers to execute arbitrary SQL queries with limited impact on confidentiality, integrity, and availability. Public exploit code exists for this vulnerability, and no patch is currently available.

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Risk assessment & exploitation conditions
Attack chain visualization
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Threat intelligence from 22 sources
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Send HTTP request to /ramonsys/inquiry/index.php

Exploit

Inject SQL payload in txtsearch parameter

Execution

Execute arbitrary SQL queries

Impact

Extract sensitive database information

Access

Send HTTP request to /ramonsys/inquiry/index.php

Exploit

Inject SQL payload in txtsearch parameter

Execution

Execute arbitrary SQL queries

Impact

Extract sensitive database information

Vulnerability AssessmentAI

Exploitation	No special conditions — remote unauthenticated exploitation against default School Management System 1.0 installations with accessible /ramonsys/inquiry/index.php endpoint. Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 7.3 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote attacker could exploit this vulnerability to compromise the affected system.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all instances of School Management System 1.0 in your environment and isolate affected systems from public-facing networks. …

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-1589 vulnerability details – vuln.today

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PHP CVE-2026-1589

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

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External POC / Exploit Code