What is the CVSS score of CVE-2026-26723?

CVE-2026-26723 has a CVSS 3.1 base score of 8.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2026-26723?

Yes, a public proof-of-concept exploit is available for CVE-2026-26723. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-26723?

Within 24 hours: Inventory all instances of Global Facilities Management Software and identify affected versions; restrict network access to the application where possible. Within 7 days: Deploy Web Application Firewall (WAF) rules to block XSS payloads; implement input validation and output encoding at the application layer; conduct user awareness brief on phishing risks. Within 30 days: Contact vendor for patch timeline; evaluate migration to alternative solutions if patch unavailable; perform security audit of all user accounts for unauthorized access.

Global Facilities Management Software CVE-2026-26723

HIGH

Cross-site Scripting (XSS) (CWE-79)

2026-02-20 cve@mitre.org

XSS Global Facilities Management Software Keystorage

8.2

CVSS 3.1 · NVD

View

Attack ChainAIDerived

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

Access

Craft malicious URL with XSS payload in function parameter
Delivery

Deliver link to victim user
Exploit

Victim clicks link in browser
Execution

JavaScript executes in victim's session
Impact

Attacker gains access to sensitive data

Vulnerability Assessment

Weakness	CWE CWE-79 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Output encoding, context-aware escaping MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	No special conditions — remote unauthenticated exploitation against default Global Facilities Management Software v. 20230721a requiring only user interaction to click malicious link.
Impact	CVSS 8.2 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required. Exploitable via remote/network. Public exploit/POC available.
Exploit ScenarioDerived	A remote attacker could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Global Facilities Management Software versions up to 20230721a is affected by cross-site scripting (xss) (CVSS 8.2).

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. 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

This vulnerability (CWE-79: Cross-site Scripting (XSS)) exists in the function component. Cross Site Scripting vulnerability in Key Systems Inc Global Facilities Management Software v. 20230721a allows a remote attacker to execute arbitrary code via the function parameter.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.2 HIGH

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

Lifecycle Timeline

PoC Detected

Feb 26, 2026 - 17:55 vuln.today

Public exploit code

CVE Published

Feb 20, 2026 - 17:25 nvd

HIGH 8.2

DescriptionCVE.org

Cross Site Scripting vulnerability in Key Systems Inc Global Facilities Management Software v. 20230721a allows a remote attacker to execute arbitrary code via the function parameter.

Executive ViewAI

Why It Matters

Global Facilities Management Software versions up to 20230721a contain a high-severity cross-site scripting vulnerability that could allow attackers to compromise user sessions and steal sensitive facility management data. This affects all organizations using vulnerable versions, with active exploit code publicly available, creating immediate risk to our operational technology and user credentials.

Business Impact: High

Compensating Controls

Deploy WAF with XSS detection and filtering rules; implement Content Security Policy (CSP) headers; disable or restrict user input fields where feasible; segment network access to the application; enforce multi-factor authentication for all users; monitor application logs for XSS attack attempts; consider temporary read-only mode if business operations permit.

Threat Intelligence Overview

EPSS Score

0.1%

Top 81% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

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 HIGH

CISA KEV No

Public POC Yes

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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.