Cyber Resilience

CVE-2026-5555

Medium

Published: 05 April 2026

Published
05 April 2026
Modified
24 April 2026
KEV Added
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Patch
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CVSS Score v4 6.9 CVSS: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/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 Score 0.0004 13.5th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-5555 is a medium-severity Injection (CWE-74) vulnerability in Code Projects (inferred from references). Its CVSS base score is 6.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 13.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-5555 is a SQL injection vulnerability in code-projects Concert Ticket Reservation System 1.0. The issue resides in an unknown part of the file /ConcertTicketReservationSystem-master/login.php within the Parameter Handler component, where manipulation of the Email argument enables the injection. It is associated with CWEs-74 and CWE-89 and carries a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).

The vulnerability allows remote exploitation without authentication, privileges, or user interaction, requiring only low attack complexity. Attackers can achieve low-level impacts on confidentiality, integrity, and availability. A public exploit is available, facilitating potential attacks.

Advisories and additional details appear in references such as https://code-projects.org/, https://github.com/Wzl731/test/issues/5, https://vuldb.com/submit/782875, https://vuldb.com/vuln/355325, and https://vuldb.com/vuln/355325/cti, published on 2026-04-05. No specific mitigation or patch guidance is provided in the CVE description.

EU & UK References

Vulnerability details

A weakness has been identified in code-projects Concert Ticket Reservation System 1.0. This affects an unknown part of the file /ConcertTicketReservationSystem-master/login.php of the component Parameter Handler. Executing a manipulation of the argument Email can lead to sql injection. The attack…

more

may be launched remotely. The exploit has been made available to the public and could be used for attacks.

CWE(s)
CWE-74CWE-89

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

SQL injection in public-facing web app (login.php) directly enables remote unauthenticated exploitation of the application for initial access.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-3150Shared CWE-74, CWE-89
CVE-2026-3746Shared CWE-74, CWE-89
CVE-2025-2683Shared CWE-74, CWE-89
CVE-2026-5238Shared CWE-74, CWE-89
CVE-2026-4288Shared CWE-74, CWE-89
CVE-2026-2220Shared CWE-74, CWE-89
CVE-2025-1535Shared CWE-74, CWE-89
CVE-2026-0597Shared CWE-74, CWE-89
CVE-2026-1688Shared CWE-74, CWE-89
CVE-2026-5018Shared CWE-74, CWE-89

Affected Assets

Code Projects
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly prevents SQL injection by validating and sanitizing the Email parameter in the vulnerable login.php Parameter Handler.

SI-2 Flaw Remediation good match
prevent

Remediates the specific SQL injection flaw in Concert Ticket Reservation System 1.0 through timely patching or code correction.

SC-7 Boundary Protection partial match
preventdetect

Boundary protection with web application firewalls blocks remote SQL injection exploits targeting the Email argument in login.php.

References