CVE-2026-44644

Description

LiquidJS's strip_html filter bypass via newline characters in HTML tags enables XSS

Overview

State

—

Assigner (CNA)

—

CVSS severity

medium

CVSS score

6.1 / 10

CVSS vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Effective score

6.1 / 10 MEDIUM source: CNA overview

CWE(s)

—

Reserved

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2026-44644

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published

2026-06-17 23:17:03 UTC

NVD last modified

2026-06-22 18:27:30 UTC

NVD CVSS v3.1

6.1 / 10 MEDIUM source: security-advisories@github.com

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability subscore

2.8 / 10

Impact subscore

2.7 / 10

EPSS score

0.0020 (probability of exploitation in next 30 days)

EPSS percentile

10.51% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

NVD-assigned CWE(s): CWE-79 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2026-37815

Assigner

GitHub_M

Published

Jun 17, 2026, 9:50:24 PM

Updated

Jun 18, 2026, 1:09:26 PM

EUVD base score (CVSS 3.1)

6.1 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EUVD-reported EPSS

0.2000

Vendors

harttle

Products

liquidjs (< 10.26.0)

Aliases

GHSA-2qv6-9wx5-cwv4

ENISA description: LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. Versions 10.25.7 and below are vulnerable to XSS through a flaw in the strip_html filter logic. The strip_html filter is intended to remove HTML tags from a string before rendering, and is widely used as an XSS sanitizer. The implementation uses a regex whose catch-all branch (<.*?>) does not match line terminators, so any HTML tag containing a \n or \r character passes through unmodified. An attacker who can place a newline inside a tag (e.g. <img\nsrc=x\nonerror=alert(1)>) bypasses sanitization entirely, since browsers treat newlines as whitespace within a tag and execute the resulting onerror/onload/etc. handler. Exploitation is possible for applications that both render attacker-controlled strings via {{ x | strip_html }} to defend against HTML injection and do not separately HTML-escape that output (default behavior — outputEscape is unset by default). This issue has been fixed in version 10.26.0.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (2)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://nvd.nist.gov/vuln/detail/CVE-2026-44644 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-44644 tenable:www.cve.org

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