CVE-2026-73428 Trix: Stored XSS via HTMLParser attribute injection on paste

Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to stored cross-site scripting when crafted HTML is pasted into the editor. HTMLParser processes a mock attachment in a with an empty data-trix-attachment="" value, causing...

CVE-2026-73428

Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to stored cross-site scripting when crafted HTML is pasted into the editor. HTMLParser processes a mock attachment in a with an empty data-trix-attachment="" value, causing...

CVE-2026-73428

Trix (rich-text editor) prior to version 2.1.18 is vulnerable to stored XSS when crafted HTML is pasted into the editor. The HTMLParser handles a mock attachment in a with an empty data-trix-attachment="{}"; this causes data-trix-attributes to apply to plain text and allows an unvalidated href i...

EUVD-2026-58520

Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to stored cross-site scripting when crafted HTML is pasted into the editor. HTMLParser processes a mock attachment in a with an empty data-trix-attachment="" value, causing...

CVE-2026-73428 Trix: Stored XSS via HTMLParser attribute injection on paste

Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to stored cross-site scripting when crafted HTML is pasted into the editor. HTMLParser processes a mock attachment in a with an empty data-trix-attachment="" value, causing...

CVE-2026-73428 Trix: Stored XSS via HTMLParser attribute injection on paste

Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to stored cross-site scripting when crafted HTML is pasted into the editor. HTMLParser processes a mock attachment in a with an empty data-trix-attachment="" value, causing...

PT-2026-71921

Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to stored cross-site scripting when crafted HTML is pasted into the editor. HTMLParser processes a mock attachment in a with an empty data-trix-attachment="" value, causing...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the StringPiece.fromJSON function. An attacker can execute arbitrary JavaScript in the context of the victim's browser by tricking a user into dragging and dropping a crafted application/x-trix-document JSON...

Stored XSS via HTMLParser attribute injection on paste

Impact The Trix editor, in versions prior to 2.1.18, is vulnerable to XSS when crafted HTML is pasted into the editor. The HTMLParser processed a mock attachment, a carrying an empty data-trix-attachment="". The empty attachment object caused the element to bypass attachment handling, so its...