CVE-2026-75089Public exploitNetwork attack vector

Database access via email SQL injection

Published Aug 18, 2026 · Updated Aug 18, 2026

SQL injection in user/check_availability.php in PHPGurukul Complaint Management System 1.0 allows remote attackers to read data via email input. The registration availability check concatenates the POST email parameter into SELECT userEmail FROM users WHERE userEmail='$email' without sanitization or prepared statements, creating a boolean-based blind SQL oracle. No login is required because the endpoint is reached from the public registration flow, so internet-reachable deployments can expose complaint and user records and any broader SQL actions allowed to the application database account.

CVSS severity7.3
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in user/check_availability.php in PHPGurukul Complaint Management System 1.0 allows remote attackers to read data via email input. The registration availability check concatenates the POST email parameter into SELECT userEmail FROM users WHERE userEmail='$email' without sanitization or prepared statements, creating a boolean-based blind SQL oracle. No login is required because the endpoint is reached from the public registration flow, so internet-reachable deployments can expose complaint and user records and any broader SQL actions allowed to the application database account.

The record

CVE
CVE-2026-75089
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
jaychouchannel
Product
Complaint Management System
Classifications
CWE-74, CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

jaychouchannel · Complaint Management Systemversion=1.0

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5VulDBCVSS: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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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