What is CVE-2026-112289?

CVE-2026-112289 is a medium-severity vulnerability in Koalixswitzerland Koalixcrm, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-19.

How severe is CVE-2026-112289?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Koalixswitzerland Koalixcrm

CVE-2026-112289

Koalixcrm through 1.14.0 contains a stored cross-site scripting vulnerability that allows staff users to inject script by storing malicious task titles rendered unescaped by Task.link_to_task(). Attackers can embed HTML or script that executes when administrators open the task changelist or change form, enabling actions like creating a superuser.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-19 · last modified 2026-10-19.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Koalixswitzerland Koalixcrm

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/KoalixSwitzerland/koalixcrm/blob/1.14.0/koalixcrm/crm/reporting/task… (technical-description)
github.com/KoalixSwitzerland/koalixcrm/issues/444 (issue-tracking)
www.vulncheck.com/advisories/koalixcrm-through-1.14.0-stored-xss-via-task-title… (third-party-advisory)

Frequently asked questions

What is CVE-2026-112289?: CVE-2026-112289 is a medium-severity vulnerability in Koalixswitzerland Koalixcrm, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-19.
How severe is CVE-2026-112289?: Medium severity. CVSS v3 base score is 5.4 out of 10.