CVE-2021-44726

High

Published: 08 December 2021

Published

08 December 2021

Modified

21 November 2024

KEV Added

—

Patch

—

CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L

EPSS Score 0.0041 61.8th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-44726 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Knime Knime Server. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 38.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

KNIME Server before 4.13.4 allows XSS via the old WebPortal login page.

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

knime

knime server

≤ 4.13.4

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.