Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| unjs / unhead | affected < 2.1.11 |
CWE
CWE-79
References
ADP enrichment
No English description supplied.
No references supplied.