Secure Access
CVE-2026-0518
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
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. |
| Impact | CVSS 4.8 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: High. User interaction: Required. Exploitation requires authentication. |
| Exploit ScenarioDerived | An attacker (requires authentication) could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Secure Access versions before 14.20 contain a stored cross-site scripting vulnerability that allows administrators to inject malicious scripts into the console interface. An authenticated admin can exploit this to interfere with other administrators' sessions and potentially steal sensitive information through the compromised console. The vulnerability requires high privileges and user interaction but can impact multiple administrators due to its scope across the application.
Earlier versions of this analysis (1)
Cross-site scripting vulnerability in versions of Secure Access prior to 14.20. An attacker with administrative privileges can interfere with another administrator’s use of the console. [CVSS 4.8 MEDIUM]
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
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Secure Access. CVE-2026-0518 is a cross-site scripting vulnerability in versions of Secure Access prior to 14.20. An attacker with administrative privileges can interfere with another administrator’s use of the console.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
Cross-site scripting vulnerability in versions of Secure Access prior to 14.20. An attacker with administrative privileges can interfere with another administrator’s use of the console.
Executive ViewAI
Organizations using versions of Secure Access should be aware of moderate risk from CVE-2026-0518, a cross-site scripting vulnerability rated CVSS 4.8. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
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GitHub PoC
Exploit-DB