CVE-2026-31873

NONE

0.0

Beschreibung

Unhead is a document head and template manager. Prior to 2.1.11, The link.href check in makeTagSafe (safe.ts) uses String.includes(), which is case-sensitive. Browsers treat URI schemes case-insensitively. DATA:text/css,... is the same as data:text/css,... to the browser, but 'DATA:...'.includes('data:') returns false. An attacker can inject arbitrary CSS for UI redressing or data exfiltration via CSS attribute selectors with background-image callbacks. This vulnerability is fixed in 2.1.11.

CVE Details

CVSS v3.1 Bewertung0.0

SchweregradNONE

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/12/2026

Zuletzt geandert3/16/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

unjs:unhead

Schwachen (CWE)

CWE-79

Referenzen

https://github.com/unjs/unhead/security/advisories/GHSA-5339-hvwr-7582(security-advisories@github.com)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.