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PHP CVE-2026-5840

| EUVD-2026-20849 LOW
SQL Injection (CWE-89)
2026-04-09 VulDB GHSA-3pxp-646h-v7m3
2.0
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.0 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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:H/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
High
User Interaction
None
Scope
X

Lifecycle Timeline

6
Severity Changed
Apr 29, 2026 - 01:11 NVD
MEDIUM LOW
CVSS changed
Apr 29, 2026 - 01:11 NVD
5.1 (MEDIUM) 2.0 (LOW)
PoC Detected
Apr 09, 2026 - 05:16 vuln.today
Public exploit code
EUVD ID Assigned
Apr 09, 2026 - 04:30 euvd
EUVD-2026-20849
Analysis Generated
Apr 09, 2026 - 04:30 vuln.today
CVE Published
Apr 09, 2026 - 04:00 nvd
MEDIUM 5.1

DescriptionCVE.org

A security flaw has been discovered in PHPGurukul News Portal Project 4.1. Impacted is an unknown function of the file /admin/check_availability.php. Performing a manipulation of the argument Username results in sql injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

AnalysisAI

SQL injection in PHPGurukul News Portal Project 4.1 allows authenticated remote attackers to manipulate the Username parameter in /admin/check_availability.php, enabling data exfiltration and potential database modification. The vulnerability requires high-privilege administrative access; publicly available exploit code exists and may be actively used in attacks.

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Vulnerability AssessmentAI

Risk Assessment This vulnerability presents moderate real-world risk despite its moderate CVSS score of 4.7. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with compromised administrator credentials or existing administrative access could navigate to /admin/check_availability.php and inject SQL syntax into the Username parameter, allowing them to extract sensitive database records (user credentials, article content, site configuration) or modify database contents without triggering application-level access controls. Publicly available exploit code reduces the skill barrier for non-sophisticated attackers to weaponize this vulnerability once administrative compromise is achieved.
Remediation Apply input validation and parameterized queries (prepared statements) to the /admin/check_availability.php file to prevent SQL injection through the Username parameter. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-5840 vulnerability details – vuln.today

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