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PHPGurukul Hostel Management System CVE-2026-90851

| EUVDEUVD-2026-78253 LOW
Improper Access Control (CWE-284)
2026-09-15 VulDB GHSA-fqcp-p9cx-qvwf
PHP Authentication Bypass Hostel Management System Phpgurukul
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
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
vuln.today AI
6.3 MEDIUM

Network-reachable login-check script with trivial parameter tampering, but PR:L and only Low confidentiality, integrity and availability impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
Analysis Generated
Sep 15, 2026 - 10:54 vuln.today
Severity Changed
Sep 15, 2026 - 02:22 NVD
MEDIUM LOW
CVSS changed
Sep 15, 2026 - 02:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
CVE Published
Sep 15, 2026 - 02:00 cve.org
LOW 2.1

DescriptionCVE.org

A flaw has been found in PHPGurukul Hostel Management System 3.0. This affects an unknown part of the file /admin/includes/checklogin.php. This manipulation of the argument ID causes improper access controls. Remote exploitation of the attack is possible. The exploit has been published and may be used.

AnalysisAI

Improper access control in PHPGurukul Hostel Management System 3.0 allows an attacker to bypass authorization checks in the admin login handler /admin/includes/checklogin.php by manipulating the ID parameter, granting unauthorized access to administrative functionality. Exploitation is remotely reachable and publicly available exploit code exists (tracked via a GitHub PoC issue and VulDB entry), though the per-component impact is limited to low confidentiality, integrity and availability loss. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation The prerequisite is a reachable deployment of PHPGurukul Hostel Management System 3.0 whose administrative console exposes /admin/includes/checklogin.php over HTTP, plus the ability to supply or modify the ID argument to that script. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The published CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) yields only a 2.1 base-adjacent score, and the Exploit (E:P) metric confirms a proof-of-concept exists - a case where low severity and available exploit code diverge. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch identified at time of analysis - the CPE carries a wildcard version and no advisory from PHPGurukul appears in the references, so remediation must be compensating. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-90851 vulnerability details – vuln.today
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