TI-2025-08337 Aliases CVE-2025-9095 GHSA-q4rg-7cjj-5r86

ExpressGateway express-gateway REST Endpoint users.js cross site scripting

MEDIUM 56CWE-79Published 2025-08-17 · Updated 2025-08-18

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting, Code execution
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79 and CWE-94.

Summary

A flaw has been found in ExpressGateway express-gateway up to 1.16.10. This issue affects some unknown processing in the library lib/rest/routes/users.js of the component REST Endpoint. The manipulation leads to cross site scripting. The attack may be initiated 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00288 21st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ExpressGateway	express-gateway	1.16.0; 1.16.1; 1.16.2; 1.16.3; 1.16.4; 1.16.5; 1.16.6; 1.16.7; 1.16.8; 1.16.9; 1.16.10	—	No fix listed	CNA
—	express-gateway (npm)	up to 1.16.10	—	No fix listed	GHSA-q4rg-7cjj-5r86

express-gateway VendorExpressGateway Affected 1.16.0; 1.16.1; 1.16.2; 1.16.3; 1.16.4; 1.16.5; 1.16.6; 1.16.7; 1.16.8; 1.16.9; 1.16.10 Fixed in — No fix listed CNA
express-gateway (npm) Vendor— Affected up to 1.16.10 Fixed in — No fix listed GHSA-q4rg-7cjj-5r86

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-9095
2026-10-03 Alias added: GHSA-q4rg-7cjj-5r86

References

Exploit 1

https://github.com/freshfish-hust/my-cves/issues/5#issue-3286622393

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2025-9095

Other 2

TI-2026-69129 Express Gateway Hardcoded Default cipherKey Exposes OAuth Tokens CVSS 4.0HIGH 7.4
TI-2026-69125 Express Gateway OAuth refresh token grant authentication bypass CVSS 4.0HIGH 7.6
TI-2025-08338 ExpressGateway express-gateway REST Endpoint apps.js cross site scripting CVSS 4.0MEDIUM 5.1
TI-2020-17768 The official Express Gateway Docker images before 1.14.0 contain a blank password for a… CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences