Which versions of ExpressGateway are affected by CVE-2025-9096?

Organizations using ExpressGateway express-gateway should be aware of moderate risk from CVE-2025-9096, a cross-site scripting vulnerability rated CVSS 5.1.

How to fix or mitigate CVE-2025-9096?

Within 30 days: Identify affected systems running ExpressGateway express-gateway and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

ExpressGateway CVE-2025-9096

Q: What is the CVSS score of CVE-2025-9096?

CVE-2025-9096 has a CVSS 4.0 base score of 2.0 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/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%.

LOW

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

2025-08-18 cna@vuldb.com

XSS

2.0

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.0 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/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

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

5.1 (MEDIUM) 2.0 (LOW)

Analysis Generated

Mar 28, 2026 - 19:07 vuln.today

CVE Published

Aug 18, 2025 - 00:15 nvd

MEDIUM 5.1

DescriptionCVE.org

A vulnerability has been found in ExpressGateway express-gateway up to 1.16.10. Affected is an unknown function in the library lib/rest/routes/apps.js of the component REST Endpoint. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

A vulnerability has been found in ExpressGateway express-gateway up to 1.16.10. Rated medium severity (CVSS 5.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A vulnerability has been found in ExpressGateway express-gateway up to 1.16.10. Affected is an unknown function in the library lib/rest/routes/apps.js of the component REST Endpoint. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. Version information: up to 1.16.10..

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.