Arbitrary Code Injection Vulnerability in Plane by Fluid Attacks
CVE-2026-10850

6.9MEDIUM

Key Information:

Vendor

Plane

Status
Plane
Vendor
CVE Published:
17 June 2026

What is CVE-2026-10850?

In Plane CE version 1.3.1, a vulnerability exists that allows a low-privileged project member to exploit the API v1 intake endpoint. By submitting arbitrary HTML and JavaScript code within the description_html field when creating an intake work item, an attacker could potentially execute malicious scripts, compromising the integrity of the application and its data. This highlights the importance of implementing strict validation and sanitization measures within APIs to prevent unauthorized actions and protect against potential exploitation.

Affected Version(s)

Plane Windows 1.3.1

References

https://fluidattacks.com/es/advisories/earth
third-party-advisory
https://github.com/makeplane/plane
product

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oscar Naveda
.