What is the CVSS score of CVE-2026-2690?

CVE-2026-2690 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: 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. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2026-2690?

Yes, a public proof-of-concept exploit is available for CVE-2026-2690. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-2690?

Within 24 hours: Isolate or take offline affected itsourcecode Event Management System instances; disable external access to /admin/ajax.php if the system must remain operational; enable logging on all admin access attempts. Within 7 days: Conduct a security audit of admin account activity for signs of unauthorized access; consider migrating to an alternative event management solution if one exists. Within 30 days: Evaluate vendor's patch timeline and roadmap; if no patch is released, execute full system decommissioning or replace with patched/alternative software.

Event Management System CVE-2026-2690

MEDIUM

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2026-02-19 cna@vuldb.com

PHP SQLi Event Management System Admerc

5.5

CVSS 4.0 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Send crafted HTTP request to /admin/ajax.php
Exploit

Inject SQL payload in Username parameter
Execution

Execute arbitrary SQL queries
Impact

Retrieve or modify database contents

Vulnerability Assessment

Weakness	CWE CWE-74 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Input neutralization, injection prevention
Exploitation Conditions	itsourcecode Event Management System 1.0 with /admin/ajax.php endpoint accessible. No authentication required. Default installation vulnerable to remote SQL injection via Username parameter in login action.
Impact	CVSS 7.3 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitation requires authentication. Exploitable via remote/network. Public exploit/POC available.
Exploit ScenarioDerived	A remote attacker (requires authentication) could exploit this vulnerability to compromise the affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

SQL injection in itsourcecode Event Management System 1.0's admin login endpoint allows unauthenticated remote attackers to manipulate the Username parameter and execute arbitrary database queries. Public exploit code exists for this vulnerability, enabling attackers to potentially extract sensitive data or compromise system integrity. No patch is currently available for affected PHP installations.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:03 CVSS 7.3

RemediationAI

Monitor vendor advisories for a patch. Use parameterized queries. Implement input validation. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Affects the of the component of Event Management System. A flaw has been found in itsourcecode Event Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/ajax.php?action=login of the component Admin Login. This manipulation of the argument Username causes sql injection. It is possible to initiate the attack remotely. The exploit has been published and may be used.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

Low

Vulnerable system: Integrity

Low

Vulnerable system: Availability

Low

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 01:11 NVD

7.3 (HIGH) 5.5 (MEDIUM)

PoC Detected

Feb 24, 2026 - 20:42 vuln.today

Public exploit code

CVE Published

Feb 19, 2026 - 07:17 nvd

HIGH 7.3

DescriptionCVE.org

A flaw has been found in itsourcecode Event Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/ajax.php?action=login of the component Admin Login. This manipulation of the argument Username causes sql injection. It is possible to initiate the attack remotely. The exploit has been published and may be used.

Executive ViewAI

Why It Matters

A high-severity authentication vulnerability in itsourcecode Event Management System 1.0 allows attackers to bypass admin login controls through the /admin/ajax.php endpoint. This directly threatens unauthorized administrative access to critical event management systems, potentially exposing sensitive data and enabling system compromise. Organizations using this software require immediate action to prevent exploitation, as public exploits are already available.

Business Impact: Severe

Compensating Controls

Deploy Web Application Firewall (WAF) rules to block requests to /admin/ajax.php with suspicious login parameters; implement network segmentation to restrict admin interface access to whitelisted IP ranges only; disable the admin login functionality if operationally feasible and use alternative authentication mechanisms; enforce multi-factor authentication at the network perimeter; implement real-time alerting on failed login attempts to /admin/ajax.php; conduct hourly log reviews for exploitation attempts until patch availability.

Threat Intelligence Overview

EPSS Score

0.0%

Top 90% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.