Which versions of PHP are affected by CVE-2026-4778?

Organizations using A weakness should be aware of moderate risk from CVE-2026-4778, a SQL injection vulnerability rated CVSS 5.3.

Is there a public PoC exploit available for CVE-2026-4778?

Yes, a public proof-of-concept exploit is available for CVE-2026-4778. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-4778?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

PHP CVE-2026-4778

Q: What is the CVSS score of CVE-2026-4778?

CVE-2026-4778 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: 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. EPSS exploitation probability: 0.0%.

EUVD-2026-15027 LOW

SQL Injection (CWE-89)

2026-03-24 VulDB

GHSA-fmg2-6qx8-qwc3

PHP SQLi Sales And Inventory System Sourcecodester

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

5.3 (MEDIUM) 2.1 (LOW)

PoC Detected

Apr 08, 2026 - 18:43 vuln.today

Public exploit code

EUVD ID Assigned

Mar 24, 2026 - 22:46 euvd

EUVD-2026-15027

Analysis Generated

Mar 24, 2026 - 22:46 vuln.today

CVE Published

Mar 24, 2026 - 22:22 nvd

MEDIUM 5.3

DescriptionCVE.org

A weakness has been identified in SourceCodester Sales and Inventory System 1.0. This vulnerability affects unknown code of the file update_category.php of the component HTTP GET Parameter Handler. This manipulation of the argument sid 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.

AnalysisAI

SQL injection in SourceCodester Sales and Inventory System 1.0 allows authenticated remote attackers to execute arbitrary SQL queries via the sid parameter in update_category.php. Public exploit code exists for this vulnerability, and no patch is currently available. Attackers with valid credentials can leverage this weakness to compromise database integrity and extract sensitive information.

Technical ContextAI

The vulnerability is a classic SQL injection flaw (CWE-89) affecting a PHP-based web application framework. SourceCodester Sales and Inventory System processes user-supplied input through HTTP GET parameters without proper input validation or parameterized query mechanisms. The update_category.php component specifically fails to implement prepared statements or parameterized queries when constructing SQL commands from the 'sid' parameter, allowing attackers to inject malicious SQL syntax. The affected product is identified via CPE as cpe:2.3:a:sourcecodester:sales_and_inventory_system with no version restrictions explicitly listed, indicating vulnerability across multiple or all versions of the system. This is a server-side PHP vulnerability that can be exploited without additional client-side complexity.

RemediationAI

The primary remediation is to upgrade SourceCodester Sales and Inventory System to a patched version when available from the vendor at https://www.sourcecodester.com/. Until a vendor patch is released, implement the following compensating controls: apply input validation and whitelist acceptable values for the 'sid' parameter, implement prepared statements or parameterized queries throughout the application codebase, enforce principle of least privilege for database credentials used by the PHP application, and restrict HTTP access to update_category.php to trusted IP ranges only. Web application firewalls (WAF) can be configured to detect and block SQL injection patterns in GET parameters as a temporary layer of defense. Database activity monitoring should be enabled to detect anomalous query patterns that may indicate successful exploitation.