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Dynamic Input Field Generator CVE-2026-77392

| EUVDEUVD-2026-63793 LOW
SQL Injection (CWE-89)
2026-08-21 VulDB GHSA-jcw8-5pjm-w5gf
SQLi PHP Dynamic Input Field Generator Using Html Css And Php
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 endpoint with low complexity; PR:L reflects required low-privilege authentication per CVSS 4.0 signal; limited and equal impact across CIA triad consistent with typical read/write SQLi on a small application.

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

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

4
Severity Changed
Aug 21, 2026 - 02:22 NVD
MEDIUM LOW
CVSS changed
Aug 21, 2026 - 02:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
Analysis Generated
Aug 21, 2026 - 02:15 vuln.today
CVE Published
Aug 21, 2026 - 01:45 cve.org
MEDIUM 5.3

DescriptionCVE.org

A weakness has been identified in SourceCodester Dynamic Input Field Generator Using HTML, CSS, and PHP 1.0. This impacts the function saveUser of the file /public/submit.php. This manipulation of the argument Researcher causes sql injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

AnalysisAI

SQL injection in SourceCodester Dynamic Input Field Generator Using HTML, CSS, and PHP 1.0 exposes the saveUser function at /public/submit.php to database manipulation through the unsanitized Researcher parameter. The CVSS 4.0 score of 5.3 with PR:L indicates low-privileged authentication is required, limiting but not eliminating risk. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain low-privileged application credentials
Delivery
Send crafted HTTP POST to /public/submit.php
Exploit
Inject SQL payload into Researcher parameter
Execution
Bypass unsanitized input in saveUser function
Impact
Extract or manipulate database contents
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Vulnerability AssessmentAI

Exploitation PR:L in the CVSS 4.0 vector confirms that some level of authenticated access is required - unauthenticated exploitation is not indicated by available data. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N) reflects a remotely exploitable, low-complexity attack requiring only low-level authentication, with limited impact across confidentiality, integrity, and availability (VC:L/VI:L/VA:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated low-privileged user submits a crafted HTTP POST request to /public/submit.php with a SQL payload embedded in the Researcher field, such as a UNION SELECT or boolean-based blind injection string. The saveUser function passes the unsanitized value directly into a SQL query, allowing the attacker to enumerate database tables, extract credentials, or modify records. …
Remediation No vendor-released patch has been identified at time of analysis - SourceCodester does not maintain a formal security advisory or patch release process for its free educational scripts. … Detailed patch versions, workarounds, and compensating controls in full report.
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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-77392 vulnerability details – vuln.today
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