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CVE-2026-5543— PHPGurukul User Registration & Login and User Management System yesterday-reg-users.php sql injection

Quick assessment

Affected
PHPGurukul User Registration & Login and User Management System
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PHPGurukul User Registration & Login and User Management System是PHPGurukul公司的一个用户注册登录及用户管理系统。 PHPGurukul User Registration & Login and User Management System 3.3版本存在SQL注入漏洞，该漏洞源于对文件/admin/yesterday-reg-users.php中参数ID的错误操作，可能导致SQL注入攻击。

CVSS 6.3 · Medium EPSS 0.32% · P22

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-5543

Vulnerability Information
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Vulnerability Title
PHPGurukul User Registration & Login and User Management System yesterday-reg-users.php sql injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in PHPGurukul User Registration & Login and User Management System 3.3. The affected element is an unknown function of the file /admin/yesterday-reg-users.php. The manipulation of the argument ID leads to sql injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
PHPGurukul User Registration & Login and User Management System SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHPGurukul User Registration & Login and User Management System是PHPGurukul公司的一个用户注册登录及用户管理系统。 PHPGurukul User Registration & Login and User Management System 3.3版本存在SQL注入漏洞，该漏洞源于对文件/admin/yesterday-reg-users.php中参数ID的错误操作，可能导致SQL注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
PHPGurukul User Registration & Login and User Management System 3.3 -

II. Public POCs for CVE-2026-5543

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III. Intelligence Information for CVE-2026-5543

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Proof of Concept for CVE-2026-5543 (1)

Security Blog Posts for CVE-2026-5543 (1)

Same Patch Batch · PHPGurukul · 2026-04-05 · 5 CVEs total

CVE-2026-5552 6.3 MEDIUM PHPGurukul Online Shopping Portal Project Parameter sub-category.php sql injection
CVE-2026-5558 6.3 MEDIUM PHPGurukul PHPGurukul Online Shopping Portal Project Parameter pending-orders.php sql inje
CVE-2026-5560 6.3 MEDIUM PHPGurukul Online Shopping Portal Project Parameter payment-method.php sql injection
CVE-2026-5583 6.3 MEDIUM PHPGurukul Online Shopping Portal Project Parameter my-profile.php sql injection

IV. Related Vulnerabilities

Same product: User Registration & Login and User Management System
Same vendor: PHPGurukul
Same weakness: CWE-89

V. Comments for CVE-2026-5543

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