CVE-2026-39400 MEDIUM

CVE-2026-39400: Stored XSS via Job HTML/Table Output in Cronicle

Vendor Jhuckaby
Product Cronicle
Weakness CWE-79 · XSS
Published April 7, 2026
Last update April 15, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.111, a non-admin user with create_events and run_events privileges can inject arbitrary JavaScript through job output fields (html.content, html.title, table.header, table.rows, table.caption). The server stores this data without sanitization, and the client renders it via innerHTML on the Job Details page. This vulnerability is fixed in 0.9.111.

Key dates

02Disclosure timeline

April 7, 2026 CVE published
April 15, 2026 Record updated

Related vulnerabilities

04Related CVE