Vulnerability · Published Aug 18, 2026 · Assigned by VulDB

CVE-2026-75089PHPGurukul Complaint Management System check_availability.php sql injection

High 7.3

In plain English

A high-severity SQL injection in Complaint Management System from PHPGurukul. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.4%top 62.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A weakness has been identified in PHPGurukul Complaint Management System 1.0. Affected by this issue is some unknown functionality of the file user/check_availability.php. This manipulation of the argument email causes sql injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

Affected products (as reported)

Vendor	Product	Versions
PHPGurukul	Complaint Management System	1.0

Weakness: CWE-89, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-391316 | PHPGurukul Complaint Management System check_availability.php sql injection vdb-entry, technical-description
VDB-391316 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-75089 | CVE Analysis and Report third-party-advisory
Submit #876776 | PHPGurukul Complaint Management System v1.0 SQL injection third-party-advisory
https://github.com/niaoniaollll/cve/issues/3 exploit, issue-tracking
https://phpgurukul.com/ product