CVE-2026-111713

Medium

Description

tarteaucitron.js before 1.37.0 contains a cross-site scripting vulnerability because getElemAttr resolves 'data-' prefixed attributes while the https-only guard validates the unprefixed attribute. Attackers who can place markup, such as CMS authors, can add data-url with a javascript: URL beside a benign url to execute script in the site's origin via iframe src.

SeverityMedium

CVSS5.4

Exploit probability—

ProductAmauric Tarteaucitron.js

PublishedOct 16, 2026

First seenOct 16, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

AmauriC tarteaucitron.js1.37.0 or later

Patches

github.com/AmauriC/tarteaucitron.js/commit/068653bd47f5d4a493251ca8e15bd2b0be9b544f

Vendor advisories

github.com/AmauriC/tarteaucitron.js/releases/tag/v1.37.0

Affected products

Product	Affected versions	Fixed in
AmauriC tarteaucitron.js	1.20.1 ≤ v < 1.37.0	1.37.0

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