Vulnerability · Published Jun 17, 2026 · Assigned by Fluid Attacks
CVE-2026-10850Plane 1.3.1 - Stored XSS in intake issue description_html
Medium 6.9
In plain English
A medium-severity cross-site scripting in Plane from Plane. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.2%top 94.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-79 · 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
References
- https://fluidattacks.com/es/advisories/earth third-party-advisory
- https://github.com/makeplane/plane product